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PG_EXPECTO: Анализ влияния размера shared_buffers на производительность СУБД PostgreSQL

PG_EXPECTO: Эксперимент, а не догадки.

Предисловие

Производительность СУБД — ключевой фактор , однако спонтанные проверки часто искажают реальную картину. PG_EXPECTO — это не просто набор скриптов, а чёткая методология, превращающая анализ PostgreSQL из хаотичного поиска проблем в структурированный, воспроизводимый эксперимент.

Задача

Используя классическую задачу о влиянии значения параметра shared_buffers на производительность СУБД, подготовить и протестировать общую методологию проведения экспериментов по анализу производительности СУБД PostgerSQL c использованием нейросети для анализа статистических данных, собранных комплексом pg_expecto в ходе нагрузочного тестирования.

Методология исследования

Тестовая среда, инструменты и конфигурация СУБД:

СУБД: PostgreSQL 17
Инструмент нагрузочного тестирования: pg_expecto
Тестовая база данных: "Демобаза 2.0" (большой размер, сложная схема)
Условия тестирования: параллельная нагрузка от 5 до 22 сессий по каждому тестовому сценарию.

Сценарий-1 (Select by PK) - plan1,sql

--scenario1
--SELECT BY PK
EXPLAIN (ANALYZE, BUFFERS , COSTS , SUMMARY )
SELECT * 
FROM bookings.airports_data 
WHERE airport_code = (
    SELECT airport_code 
    FROM bookings.airports_data 
    ORDER BY random() 
    LIMIT 1
);

                                                                                     QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Index Scan using idx_airports_data_code_timezone on airports_data  (cost=143.04..145.26 rows=1 width=190) (actual time=2.557..2.559 rows=1 loops=1)
   Index Cond: (airport_code = (InitPlan 1).col1)
   Buffers: shared hit=23
   InitPlan 1
     ->  Limit  (cost=142.75..142.76 rows=1 width=12) (actual time=2.468..2.469 rows=1 loops=1)
           Buffers: shared hit=20
           ->  Sort  (cost=142.75..156.51 rows=5501 width=12) (actual time=2.467..2.467 rows=1 loops=1)
                 Sort Key: (random())
                 Sort Method: top-N heapsort  Memory: 25kB
                 Buffers: shared hit=20
                 ->  Index Only Scan using airports_data_pkey on airports_data airports_data_1  (cost=0.28..115.25 rows=5501 width=12) (actual time=0.127..1.319 rows=5501 loops=1)
                       Heap Fetches: 0
                       Buffers: shared hit=17
 Planning:
   Buffers: shared hit=199
 Planning Time: 1.783 ms
 Execution Time: 2.675 ms
(17 rows)

Сценарий-2 (GROUP BY)- plan2,sql

--scenario2
--GROUP BY
EXPLAIN (ANALYZE, BUFFERS , COSTS , SUMMARY )
WITH random_airplanes AS (
    SELECT airplane_code 
    FROM bookings.airplanes_data 
    ORDER BY random() 
    LIMIT (random() * 9 + 1)::int  -- От 1 до 10 значений
)
SELECT s.fare_conditions, 
       COUNT(*) as seat_count,
       COUNT(DISTINCT s.airplane_code) as airplane_types
FROM bookings.seats s
WHERE s.airplane_code IN (SELECT airplane_code FROM random_airplanes)
GROUP BY s.fare_conditions
ORDER BY seat_count DESC;

                                                                                    QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=23.59..23.60 rows=3 width=24) (actual time=2.231..2.235 rows=3 loops=1)
   Sort Key: (count(*)) DESC
   Sort Method: quicksort  Memory: 25kB
   Buffers: shared hit=23
   CTE random_airplanes
     ->  Limit  (cost=1.29..1.29 rows=1 width=12) (actual time=0.080..0.083 rows=6 loops=1)
           Buffers: shared hit=1
           ->  Sort  (cost=1.29..1.32 rows=10 width=12) (actual time=0.066..0.067 rows=6 loops=1)
                 Sort Key: (random())
                 Sort Method: quicksort  Memory: 25kB
                 Buffers: shared hit=1
                 ->  Seq Scan on airplanes_data  (cost=0.00..1.12 rows=10 width=12) (actual time=0.051..0.053 rows=10 loops=1)
                       Buffers: shared hit=1
   ->  GroupAggregate  (cost=20.07..22.28 rows=3 width=24) (actual time=1.844..2.187 rows=3 loops=1)
         Group Key: s.fare_conditions
         Buffers: shared hit=20
         ->  Sort  (cost=20.07..20.61 rows=218 width=12) (actual time=1.787..1.877 rows=1294 loops=1)
               Sort Key: s.fare_conditions, s.airplane_code
               Sort Method: quicksort  Memory: 89kB
               Buffers: shared hit=20
               ->  Nested Loop  (cost=0.30..7.41 rows=218 width=12) (actual time=0.191..0.632 rows=1294 loops=1)
                     Buffers: shared hit=14
                     ->  HashAggregate  (cost=0.02..0.03 rows=1 width=16) (actual time=0.114..0.118 rows=6 loops=1)
                           Group Key: random_airplanes.airplane_code
                           Batches: 1  Memory Usage: 24kB
                           Buffers: shared hit=1
                           ->  CTE Scan on random_airplanes  (cost=0.00..0.02 rows=1 width=16) (actual time=0.104..0.107 rows=6 loops=1)
                                 Buffers: shared hit=1
                     ->  Index Only Scan using idx_seats_airplane_code_fare_conditions on seats s  (cost=0.28..5.19 rows=218 width=12) (actual time=0.017..0.050 rows=216 loops=6)
                           Index Cond: (airplane_code = random_airplanes.airplane_code)
                           Heap Fetches: 0
                           Buffers: shared hit=13
 Planning:
   Buffers: shared hit=90
 Planning Time: 0.774 ms
 Execution Time: 2.544 ms
(36 rows)

Сценарий-3 (ORDER BY)- plan3,sql

-scenario3
--ORDER BY 
EXPLAIN (ANALYZE, BUFFERS , COSTS , SUMMARY )
SELECT book_ref, 
       book_date, 
       total_amount,
       EXTRACT(DAY FROM book_date) as booking_day
FROM bookings.bookings 
WHERE total_amount > 0
ORDER BY book_date 
LIMIT (random() * 499 + 1)::int;  -- От 1 до 500 записей

                                                                      QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=0.43..21335.15 rows=711319 width=53) (actual time=0.084..5.599 rows=142 loops=1)
   Buffers: shared hit=91 read=10
   I/O Timings: shared read=5.249
   ->  Index Scan using idx_bookings_book_date on bookings  (cost=0.43..213347.50 rows=7113187 width=53) (actual time=0.081..5.576 rows=142 loops=1)
         Filter: (total_amount > '0'::numeric)
         Buffers: shared hit=91 read=10
         I/O Timings: shared read=5.249
 Planning:
   Buffers: shared hit=72
 Planning Time: 0.646 ms
 Execution Time: 5.642 ms
(11 rows)

Сценарий-4 (JOIN)- plan4,sql

--scenario4
--JOIN
EXPLAIN (ANALYZE, BUFFERS , COSTS , SUMMARY )
WITH random_departures AS (
    SELECT airport_code 
    FROM bookings.airports_data 
    ORDER BY random() 
    LIMIT (random() * 9 + 1)::int
),
random_validity_date AS (
    SELECT 
        date_trunc('day', 
            lower(validity) + 
            (random() * EXTRACT(EPOCH FROM (upper(validity) - lower(validity)))) * interval '1 second'
        ) as random_date
    FROM bookings.routes 
    WHERE validity IS NOT NULL 
      AND upper(validity) > lower(validity) + interval '7 days'
    ORDER BY random() 
    LIMIT 1
)
SELECT r.route_no, 
       r.departure_airport,
       a_dep.city->>'en' as departure_city,
       r.arrival_airport,
       a_arr.city->>'en' as arrival_city,
       r.duration,
       r.days_of_week
FROM bookings.routes r
JOIN bookings.airports_data a_dep ON r.departure_airport = a_dep.airport_code
JOIN bookings.airports_data a_arr ON r.arrival_airport = a_arr.airport_code
CROSS JOIN random_validity_date rvd
WHERE r.departure_airport IN (SELECT airport_code FROM random_departures)
  AND r.validity @> rvd.random_date
  AND array_length(r.days_of_week, 1) > 0
ORDER BY r.departure_airport, r.route_no
LIMIT 300;

                                                                                                                                                                  QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=707.57..707.58 rows=2 width=133) (actual time=14.544..14.551 rows=0 loops=1)
   Buffers: shared hit=1804
   CTE random_departures
     ->  Limit  (cost=457.01..458.39 rows=550 width=12) (actual time=3.396..3.398 rows=2 loops=1)
           Buffers: shared hit=17
           ->  Sort  (cost=457.01..470.77 rows=5501 width=12) (actual time=3.393..3.394 rows=2 loops=1)
                 Sort Key: (random())
                 Sort Method: top-N heapsort  Memory: 25kB
                 Buffers: shared hit=17
                 ->  Index Only Scan using airports_data_pkey on airports_data  (cost=0.28..115.25 rows=5501 width=12) (actual time=0.055..1.765 rows=5501 loops=1)
                       Heap Fetches: 0
                       Buffers: shared hit=17
   CTE random_validity_date
     ->  Limit  (cost=200.26..200.31 rows=1 width=16) (actual time=6.880..6.883 rows=1 loops=1)
           Buffers: shared hit=37
           ->  Result  (cost=200.26..282.33 rows=1931 width=16) (actual time=6.879..6.881 rows=1 loops=1)
                 Buffers: shared hit=37
                 ->  Sort  (cost=200.26..205.09 rows=1931 width=30) (actual time=6.862..6.862 rows=1 loops=1)
                       Sort Key: (random())
                       Sort Method: top-N heapsort  Memory: 25kB
                       Buffers: shared hit=37
                       ->  Index Only Scan using idx_routes_route_no_validity on routes  (cost=0.28..190.61 rows=1931 width=30) (actual time=0.114..5.148 rows=5792 loops=1)
                             Filter: (upper(validity) > (lower(validity) + '7 days'::interval))
                             Heap Fetches: 0
                             Buffers: shared hit=37
   ->  Sort  (cost=48.88..48.88 rows=2 width=133) (actual time=14.542..14.546 rows=0 loops=1)
         Sort Key: r.departure_airport, r.route_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=1804
         ->  Hash Semi Join  (cost=19.91..48.86 rows=2 width=133) (actual time=14.512..14.515 rows=0 loops=1)
               Hash Cond: (r.departure_airport = random_departures.airport_code)
               Buffers: shared hit=1804
               ->  Nested Loop  (cost=2.03..30.95 rows=2 width=171) (actual time=7.224..10.962 rows=290 loops=1)
                     Buffers: shared hit=1787
                     ->  Nested Loop  (cost=1.75..30.15 rows=2 width=122) (actual time=7.190..9.174 rows=290 loops=1)
                           Buffers: shared hit=917
                           ->  Nested Loop  (cost=1.47..29.36 rows=2 width=69) (actual time=7.129..7.455 rows=290 loops=1)
                                 Buffers: shared hit=47
                                 ->  CTE Scan on random_validity_date rvd  (cost=0.00..0.02 rows=1 width=8) (actual time=6.883..6.885 rows=1 loops=1)
                                       Buffers: shared hit=37
                                 ->  Bitmap Heap Scan on routes r  (cost=1.47..29.24 rows=10 width=91) (actual time=0.240..0.494 rows=290 loops=1)
                                       Recheck Cond: (validity @> rvd.random_date)
                                       Filter: (array_length(days_of_week, 1) > 0)
                                       Heap Blocks: exact=6
                                       Buffers: shared hit=10
                                       ->  Bitmap Index Scan on idx_routes_validity  (cost=0.00..1.47 rows=29 width=0) (actual time=0.184..0.184 rows=290 loops=1)
                                             Index Cond: (validity @> rvd.random_date)
                                             Buffers: shared hit=4
                           ->  Index Scan using airports_data_pkey on airports_data a_dep  (cost=0.28..0.40 rows=1 width=53) (actual time=0.005..0.005 rows=1 loops=290)
                                 Index Cond: (airport_code = r.departure_airport)
                                 Buffers: shared hit=870
                     ->  Index Scan using airports_data_pkey on airports_data a_arr  (cost=0.28..0.40 rows=1 width=53) (actual time=0.005..0.005 rows=1 loops=290)
                           Index Cond: (airport_code = r.arrival_airport)
                           Buffers: shared hit=870
               ->  Hash  (cost=11.00..11.00 rows=550 width=16) (actual time=3.423..3.423 rows=2 loops=1)
                     Buckets: 1024  Batches: 1  Memory Usage: 9kB
                     Buffers: shared hit=17
                     ->  CTE Scan on random_departures  (cost=0.00..11.00 rows=550 width=16) (actual time=3.398..3.401 rows=2 loops=1)
                           Buffers: shared hit=17
 Planning:
   Buffers: shared hit=216
 Planning Time: 3.506 ms
 Execution Time: 15.095 ms
(63 rows)

СПИСОК SQL ВЫРАЖЕНИЙ (sql_list.txt)

QUERYID | SQL TEXT |
-1247703524680257765|select scenario2()
-2326249669894930556|select scenario3()
3162304388436908605|select scenario4()
-3890986969840966328|select scenario1()

Размеры тестовых таблиц (количество строк)

     relname     | n_live_tup 
-----------------+------------
 airplanes_data  |         10
 seats           |       1741
 airports_data   |       5501
 airplanes_data  |         10
 airports_data   |       5501
 bookings        |    7113192
 routes          |       5792
 seats           |       1741
 tickets         |   15575748
 flights         |     108435
 segments        |   20598447
 boarding_passes |   19870557
(12 rows)

План нагрузочного тестирования (param.conf)

# НАСТРОЙКИ НАГРУЗОЧНОГО ТЕСТИРОВАНИЯ
# Максимальная нагрузка
finish_load = 20
# Тестовая БД
testdb = demo
# Веса сценариев
scenario1 = 1.0
scenario2 = 1.0
scenario3 = 1.0
scenario4 = 1.0

Конфигурационные параметры СУБД (postgresql.auto.conf)

# Do not edit this file manually!
# It will be overwritten by the ALTER SYSTEM command.
track_io_timing = 'on'
listen_addresses = '0.0.0.0'
logging_collector = 'on'
log_directory = '/log/pg_log'
log_destination = 'stderr'
log_rotation_size = '0'
log_rotation_age = '1d'
log_filename = 'postgresql-%u.log'
log_line_prefix = '%m| %d| %a| %u| %h| %p| %e| '
log_truncate_on_rotation = 'on'
log_checkpoints = 'on'
archive_mode = 'on'
archive_command = 'true'
archive_timeout = '30min'
checkpoint_timeout = '15min'
checkpoint_warning = '60'
checkpoint_completion_target = '0.9'
min_wal_size = '2GB'
max_wal_size = '8GB'
synchronous_commit = 'on'
wal_compression = 'on'
random_page_cost = '1.1'
effective_io_concurrency = '300'
wal_sender_timeout = '0'
autovacuum_naptime = '1s'
autovacuum_vacuum_scale_factor = '0.01'
autovacuum_analyze_scale_factor = '0.005'
autovacuum_vacuum_cost_delay = '2ms'
autovacuum_max_workers = '4'
autovacuum_work_mem = '256MB'
vacuum_cost_limit = '4000'
bgwriter_delay = '10ms'
bgwriter_lru_multiplier = '4'
bgwriter_lru_maxpages = '400'
max_locks_per_transaction = '256'
max_pred_locks_per_transaction = '256'
temp_buffers = '14MB'
maintenance_work_mem = '479MB'
idle_in_transaction_session_timeout = '1h'
statement_timeout = '8h'
pg_stat_statements.track_utility = 'off'
max_parallel_maintenance_workers = '4'
hash_mem_multiplier = '2'
autovacuum_vacuum_insert_scale_factor = '0.01'
shared_preload_libraries = 'pg_stat_statements , pg_wait_sampling'
commit_delay = '1000'
log_autovacuum_min_duration = '0'
wipe_file_on_delete = 'on'
wipe_heaptuple_on_delete = 'on'
wipe_mem_on_free = 'on'
wipe_memctx_on_free = 'on'
wipe_xlog_on_free = 'on'
log_connections = 'on'
log_disconnections = 'on'
pg_stat_statements.track = 'all'
max_connections = '1000'
work_mem = '180MB'
max_parallel_workers_per_gather = '1'
max_parallel_workers = '16'
max_worker_processes = '16'
shared_buffers = '2GB'
effective_cache_size = '6GB'

Нагрузка на СУБД (load.txt)

ИЗМЕНЕНИЕ НАГРУЗКИ В ХОДЕ НАГРУЗОЧНОГО ТЕСТИРОВАНИЯ 
№	LOAD
1	5
2	5
3	5
4	5
5	5
6	5
7	5
8	5
9	5
10	5
11	5
12	8
13	8
14	8
15	8
16	8
17	8
18	8
19	8
20	8
21	8
22	8
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	8
31	8
32	8
33	8
34	9
35	9
36	9
37	9
38	9
39	9
40	9
41	9
42	9
43	9
44	9
45	10
46	10
47	10
48	10
49	10
50	10
51	10
52	10
53	10
54	10
55	10
56	12
57	12
58	12
59	12
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	13
68	13
69	13
70	13
71	13
72	13
73	13
74	13
75	13
76	13
77	13
78	15
79	15
80	15
81	15
82	15
83	15
84	15
85	15
86	15
87	15
88	15
89	18
90	18
91	18
92	18
93	18
94	18
95	18
96	18
97	18
98	18
99	18
100	22
101	22
102	22
103	22
104	22
105	22
106	22
107	22
108	22

Начальная гипотеза нейросети

Входные данные

Схема тестовой базы данных : demo_schema.sql

Размеры таблиц : tables.txt

Конфигурация СУБД : postgres.auto.conf

Таблица нагрузки: load.txt

Список queryid : sql_list.txt

Тестовые запросы и планы выполнения: plans.txt

Используя предоставленные входные данные, сформулируй гипотезу о влиянии увеличения параметра shared_buffers в ходе нагрузочного тестирования по сравнению базовым значением shared_buffers=2GB (Эксперимент-1) в экспериментах : shared_buffers=4GB (Эксперимент-2), shared_buffers=5GB (Эксперимент-3), shared_buffers=6GB (Эксперимент-4). Уточни ключевые признаки значений ожиданий СУБД wait_event_type и метрик производительности инфраструктуры vmstat, iostat, указывающие на слишком большой размер shared_buffers в ходе данных экспериментов.

Промпт для нейросети DeepSeek

Гипотеза о влиянии увеличения shared_buffers

Ожидаемый положительный эффект:
При увеличении shared_buffers с 2GB до 4-6GB в данных экспериментах ожидается:

Уменьшение физических чтений с диска, особенно для больших таблиц (bookings, tickets, segments, boarding_passes с 7-20 млн строк)
Улучшение производительности запросов, выполняющих полные сканирования или работающих с большими объемами данных
Снижение нагрузки на подсистему ввода-вывода

Однако существует риск избыточного размера shared_buffers, о котором свидетельствуют следующие признаки:

1. Признаки в wait_event_type СУБД:

Увеличение событий BufferContentLock, LWLock - конкуренция за доступ к буферам
Рост IO событий, связанных с WALWrite - из-за увеличения объема dirty buffers, требующих записи
Появление CheckpointWrite и CheckpointSync чаще - контрольные точки становятся более продолжительными
Увеличение BgWriter активности - фоновый писатель не справляется с очисткой буферов

2. Признаки в метриках инфраструктуры:

vmstat:

Высокий si (swap in) и so (swap out) при недостатке оперативной памяти
Увеличение cs (context switches) из-за борьбы за память
Рост us (user CPU) без соответствующего улучшения throughput

iostat:

Увеличение await времени для устройств хранения, хотя %util может снижаться
Рост svctm (service time) из-за более долгой записи на контрольных точках
Непропорциональное увеличение записи (wkB/s) относительно чтения (rkB/s)

3. Ключевые индикаторы проблем с oversized shared_buffers:

Для текущей конфигурации (effective_cache_size=6GB, данные ~20GB+):

Эксперимент-4 (6GB shared_buffers) - риск наибольших проблем, так как:
- shared_buffers приближается к effective_cache_size
- Может вызывать вытеснение файлового кэша ОС
- Увеличивает нагрузку на управление памятью

Специфические для нагрузки признаки:

Отсутствие улучшения после 4GB - если производительность стагнирует или ухудшается при переходе с 4GB на 5-6GB
Увеличение checkpoint_segments/wal в логах PostgreSQL
Рост buffers_backend_fsync в pg_stat_bgwriter
Увеличение разницы между buffers_alloc и buffers_backend

Оптимальная точка вероятно находится между 4-5GB для данной нагрузки, учитывая:

Общий объем данных ~20GB+
Наличие memory-intensive операций (сортировки, hash-агрегации)
Одновременное выполнение 4 различных сценариев запросов

Результаты экспериментов по итогам нагрузочных тестирований

Операционная скорость

График изменения операционной скорости СУБД в ходе нагрузочных тестирований при разных значениях shered_buffers

SPEED-4GB / SPEED-2GB

График изменения относительной разницы между операционной скоростью в эксперименте "shared_buffers=4GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее снижение операционной скорости в эксперименте "shared_buffers=4GB" по сравнению с базовым значением "shared_buffers=2GB" составило 0.54%

SPEED-5GB / SPEED-2GB

График изменения относительной разницы между операционной скоростью в эксперименте "shared_buffers=5GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее увеличение операционной скорости в эксперименте "shared_buffers=5GB" по сравнению с базовым значением "shared_buffers=2GB" составило 0.62%

SPEED-6GB / SPEED-2GB

График изменения относительной разницы между операционной скоростью в эксперименте "shared_buffers=6GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее увеличение операционной скорости в эксперименте "shared_buffers=6GB" по сравнению с базовым значением "shared_buffers=2GB" составило 0.56%

Ожидания СУБД

График изменения операционной скорости СУБД в ходе нагрузочных тестирований при разных значениях shered_buffers

WAITINGS-4GB / WAITINGS-2GB

График изменения относительной разницы между количество ожиданий СУБД в эксперименте "shared_buffers=4GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее снижение количества ожиданий СУБД в эксперименте "shared_buffers=4GB" по сравнению с базовым значением "shared_buffers=2GB" составило 0.22%

WAITINGS-5GB / WAITINGS-2GB

График изменения относительной разницы между количество ожиданий СУБД в эксперименте "shared_buffers=5GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее увеличение количества ожиданий СУБД в эксперименте "shared_buffers=5GB" по сравнению с базовым значением "shared_buffers=2GB" составило 5.75%

WAITINGS-6GB / WAITINGS-2GB

График изменения относительной разницы между количество ожиданий СУБД в эксперименте "shared_buffers=6GB" по сравнению с экспериментом "shared_buffers=2GB"

Среднее увеличение количества ожиданий СУБД в эксперименте "shared_buffers=6GB" по сравнению с базовым значением "shared_buffers=2GB" составило 6.50%

Входные данные для анализа результатов экспериментов

1. Анализ операционной скорости и ожиданий СУБД

Входные данные:

Схема тестовой базы данных : demo_schema.sql

Размеры таблиц : tables.txt

Конфигурация СУБД : postgres.auto.conf

Таблица нагрузки: load.txt

Список queryid : sql_list.txt

Тестовые запросы и планы выполнения: plans.txt

Регрессионный и корреляционный анализ производительности и ожиданий СУБД для эксперимента N(1-4) : N.postgres.1.cluster_report_meta.txt

Статистические данные по производительности и ожиданиям СУБД (wait_event_type) для эксперимента N(1-4) : N.postgres.1.cluster_report_4graph.txt

Используя входные данные, сформируй сравнительный анализ . Выдели ключевые отличия в производительности(speed), типах ожиданий СУБД(wait_event_type) , событий ожидания СУБД(wait_event). Сформируй итог по серии экспериментов.

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Сравнительный анализ экспериментов 1-4

1. Общая характеристика экспериментов

Временные периоды:

Эксперимент 1: 2025-12-12 10:21 - 12:10 (109 минут)
Эксперимент 2: 2025-12-12 13:13 - 15:02 (109 минут)
Эксперимент 3: 2025-12-12 17:04 - 18:53 (109 минут)
Эксперимент 4: 2025-12-13 08:49 - 10:38 (109 минут)

Нагрузка: Во всех экспериментах нагрузка плавно возрастала от 5 до 22 единиц.

2. Сравнительный анализ производительности (SPEED)

Эксперимент	SPEED MAX	SPEED MIN	Диапазон	Динамика (угол наклона)	R²
1	2.967.383	1.209.694	1.757.689	-44,37	0,96
2	2.944.562	1.181.182	1.763.380	-44,45	0,96
3	2.947.696	1.211.676	1.736.020	-44,36	0,96
4	2.931.559	1.224.471	1.707.088	-44,27	0,95

Ключевые наблюдения:

Все эксперименты демонстрируют стабильное снижение производительности с течением времени (отрицательные углы наклона)
Наивысшая пиковая производительность в эксперименте 1 (2.967.383)
Наименьшая минимальная производительность в эксперименте 2 (1.181.182)
Коэффициент детерминации R² ≈ 0,95-0,96 указывает на сильную линейную зависимость

3. Сравнительный анализ ожиданий СУБД (WAITINGS)

Эксперимент	WAITINGS MAX	WAITINGS MIN	Диапазон	Динамика (угол наклона)	R²
1	119	15	104	-41,81	0,80
2	183	10	173	-41,60	0,79
3	128	13	115	-41,97	0,81
4	161	12	149	-42,00	0,81

Ключевые наблюдения:

Эксперимент 2 имеет максимальные ожидания (183) и наибольший диапазон
Эксперимент 1 имеет минимальные максимальные ожидания (119)
Во всех экспериментах наблюдается снижение ожиданий со временем
Корреляция SPEED-WAITINGS: 0,87-0,91 (сильная обратная зависимость)

4. Анализ типов ожиданий (wait_event_type)

Эксперимент 1:

Основные типы: LWLOCK (0,95), TIMEOUT (1,00)
Отсутствуют: IO, IPC, LOCK, BUFFERPIN, EXTENSION
Корреляция: WAITINGS-LWLOCK=0,95, WAITINGS-TIMEOUT=1,00

Эксперимент 2:

Основные типы: LWLOCK (0,96), TIMEOUT (0,98)
Появляются: IO (незначительно), IPC (незначительно)
Корреляция: WAITINGS-LWLOCK=0,96, WAITINGS-TIMEOUT=0,98

Эксперимент 3:

Основные типы: LWLOCK (0,96), TIMEOUT (1,00)
Незначительные: IO, IPC
Корреляция: WAITINGS-LWLOCK=0,96, WAITINGS-TIMEOUT=1,00

Эксперимент 4:

Основные типы: LWLOCK (0,96), TIMEOUT (0,99), IO (0,93)
Корреляция: Сильная корреляция WAITINGS-IO=0,93

5. Анализ событий ожидания (wait_event)

Общие для всех экспериментов:

LWLOCK: Преобладают lightweight locks (средний уровень 5-8)
TIMEOUT: Доминирующий тип ожиданий (80-90% от WAITINGS)

Уникальные особенности:

Эксперимент 2: Пиковые значения IO=34 и IPC=20 (в начале эксперимента)
Эксперимент 4: Устойчивое присутствие IO ожиданий (до 12 единиц)
Эксперименты 2,3,4: Появление IPC ожиданий (до 21 в эксп. 4)

6. Связь с выполняемыми запросами

Из sql_list.txt и plans.txt:

scenario1(): SELECT BY PK (индексный доступ)
scenario2(): GROUP BY (агрегация с сортировкой)
scenario3(): ORDER BY (сортировка больших объемов)
scenario4(): JOIN (сложные соединения)

Гипотеза распределения:

Эксперимент 1: Преобладание scenario1 (минимальные IO ожидания)
Эксперимент 2: Преобладание scenario3/scenario4 (максимальные IO/IPC)
Эксперимент 4: Преобладание scenario4 (устойчивые IO ожидания)

7. Влияние конфигурации СУБД

Из postgresql.auto.conf:

effective_io_concurrency = 300 (высокий)
random_page_cost = 1.1 (низкий)
shared_buffers = 2GB
work_mem = 180MB

Выявленные эффекты:

Высокий effective_io_concurrency позволяет параллельные IO операции
Низкий random_page_cost способствует использованию индексов
Достаточный work_mem уменьшает временные операции на диск

8. Итоговый вывод по серии экспериментов

Ключевые отличия между экспериментами:

Эксперимент 1 (базовый):
- Наименьшие максимальные ожидания
- Отсутствие IO/IPC ожиданий
- Вероятно, выполнялись простые SELECT запросы
Эксперимент 2 (максимальная нагрузка):
- Наибольшие общие ожидания (183)
- Пиковые значения IO/IPC
- Вероятно, выполнялись запросы с сортировкой больших объемов
Эксперимент 3 (сбалансированный):
- Промежуточные значения ожиданий
- Незначительные IO/IPC
- Стабильная работа
Эксперимент 4 (IO-нагруженный):
- Устойчивые IO ожидания (корреляция 0,93)
- Вероятно, выполнялись JOIN запросы с большими хеш-таблицами

Общие тенденции:

Производительность стабильно снижается с увеличением нагрузки во всех экспериментах
TIMEOUT и LWLOCK - доминирующие типы ожиданий во всех сценариях
IO ожидания появляются только при выполнении запросов с большими объемами данных
Конфигурация СУБД адекватна нагрузке, но требует мониторинга при пиковых значениях

Общий итог: Серия экспериментов демонстрирует стабильную работу СУБД под различными типами нагрузки. Наибольшее влияние на производительность оказывают операции, требующие интенсивного ввода-вывода и блокировок. Конфигурация СУБД в целом оптимальна для данной нагрузки.

2. Анализ производительности подсистемы IO

Входные данные:

Таблица нагрузки: load.txt

Статистические данные ioatst для эксперимента N(1-4) : N.linux.x.iostat_vdd_4graph.txt

Используя входные данные, сформируй сравнительный анализ . Выдели ключевые отличия в метриках iostat. Сформируй итог по серии экспериментов.

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1. Общие наблюдения

Во всех четырёх экспериментах зафиксированы идентичные значения метрик iostat для устройства vdd:

w/s (количество операций записи в секунду): 0,0000
wrqm/s (количество слиянных операций записи в секунду): 0,0000
%wrqm (процент слияний операций записи): 49,0000
w_await (среднее время ожидания записи в мс): 2,0000
wareq_sz (средний размер запроса записи в секторах): 10,0000
%util (процент использования диска): 0,0000
f/s (количество операций flush в секунду): 0,0000
f_await (среднее время ожидания flush в мс): 0,0000

...

4. Итог по серии экспериментов

Диск vdd не был нагружен в ходе всех четырёх экспериментов.
Метрики iostat неизменны во времени и между экспериментами.
Нагрузочное тестирование, судя по данным, не затрагивало устройство vdd. Возможно:
- Нагрузка направлялась на другие диски или ресурсы (CPU, память, сеть).
- Данные собраны не с того устройства или в момент простоя системы.
- Конфигурация теста не подразумевала операций ввода-вывода на vdd.

2. Анализ производительности инфраструктуры (vmstat)

Входные данные:

Таблица нагрузки: load.txt

Тестовые запросы и планы выполнения: plans.txt

Статистические данные vmstat для эксперимента N(1-4) : N.linux.x.vmstat_4graph.txt

Используя входные данные, сформируй сравнительный анализ . Выдели ключевые отличия в метриках vmstat. Сформируй итог по серии экспериментов.

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1. Ключевые отличия в метриках vmstat между экспериментами

Память (Memory):

Memory_swpd (виртуальная память):
- Эксперимент 1: стабильно 190 MB
- Эксперимент 2: стабильно 59 MB
- Эксперимент 3: стабильно 59 MB
- Эксперимент 4: стабильно 58 MB
- Вывод: В первом эксперименте значительно выше использование свопа, что указывает на большую нагрузку на оперативную память.
Memory_free (свободная память):
- Начальный уровень свободной памяти отличается:
  - Эксп 1: ~160-200 MB
  - Эксп 2: ~2000-2044 MB
  - Эксп 3: ~1600-1613 MB
  - Эксп 4: ~200-250 MB
- Вывод: Эксперименты проводились в разных условиях загрузки системы, что влияет на сравнение.

Процессы (Procs_r):

Количество запущенных процессов:
- Эксп 1: увеличивается с 21 до 50 (рост в 2.38 раза)
- Эксп 2: увеличивается с 21 до 49 (рост в 2.33 раза)
- Эксп 3: увеличивается с 21 до 51 (рост в 2.43 раза)
- Эксп 4: увеличивается с 21 до 51 (рост в 2.43 раза)
- Вывод: Во всех экспериментах наблюдается стабильный рост количества процессов, коррелирующий с увеличением нагрузки.

CPU (процессор):

cpu_us (пользовательское время CPU):
- Во всех экспериментах: стабильно 89-95%
- Незначительный рост к концу тестов
cpu_sy (системное время CPU):
- Эксп 1: снижается с 10% до 5%
- Эксп 2: снижается с 10% до 4%
- Эксп 3: снижается с 10% до 4%
- Эксп 4: снижается с 10% до 5%
- Вывод: В первых экспериментах выше системная нагрузка, что может указывать на большее количество системных вызовов.

Ввод-вывод (I/O):

io_bo (блоки ввода-вывода):
- Эксп 1: 53-56 (стабильно)
- Эксп 2: 48-62 (более волатильно)
- Эксп 3: 45-51 (наиболее стабильно)
- Эксп 4: 51-58 (умеренная волатильность)

Системные метрики:

system_in (прерывания):
- Значительно снижается во всех экспериментах к концу тестирования
- Наиболее резкое падение в эксперименте 4
system_cs (переключения контекста):
- Стабильное снижение во всех экспериментах
- Наибольшие значения в эксперименте 1

2. Связь с нагрузочным тестированием

Из файла load.txt видно, что нагрузка увеличивалась постепенно:

С 5 до 22 единиц нагрузки
110 измерений соответствуют 110 записям в каждом эксперименте

Зависимости, наблюдаемые при увеличении нагрузки:

Количество процессов (procs_r) линейно возрастает с увеличением нагрузки
Свободная память (memory_free) уменьшается при увеличении нагрузки
CPU пользовательское время остается стабильно высоким
CPU системное время снижается при увеличении нагрузки

3. Анализ тестовых запросов (plans.txt)

Из планов выполнения видно 4 сценария:

SELECT BY PK - быстрый запрос (2.675 ms)
GROUP BY - умеренная сложность (2.544 ms)
ORDER BY - самый медленный (5.642 ms)
JOIN - сложный запрос с CTE (15.095 ms)

Связь с экспериментами:
Каждый эксперимент, соответствует одному из сценариев, что объясняет разницу в метриках:

Эксперимент 4 (с JOIN) показывает наибольшее изменение метрик
Эксперимент 1 (с SELECT BY PK) показывает наименьшую волатильность

4. Итоги по серии экспериментов

Ключевые выводы:

Производительность системы:
- Система демонстрирует стабильность даже при 22 единицах нагрузки
- CPU остается основным узким местом (высокий % пользовательского времени)
Память:
- Значительная разница в использовании свопа между экспериментами
- Наиболее эффективное использование памяти в экспериментах 2 и 3
Масштабируемость:
- Система адекватно реагирует на увеличение нагрузки
- Наблюдается линейный рост процессов при увеличении нагрузки
Рекомендации:
- Оптимизировать запросы типа JOIN (самые ресурсоемкие)
- Рассмотреть увеличение оперативной памяти для снижения использования свопа
- Мониторить системные прерывания и переключения контекста как индикаторы проблем

Сравнительная таблица итоговых показателей:

Метрика	Эксп 1	Эксп 2	Эксп 3	Эксп 4	Лучший показатель
procs_r (рост)	2.38x	2.33x	2.43x	2.43x	Эксп 2 (наименьший рост)
memory_swpd	190 MB	59 MB	59 MB	58 MB	Эксп 4
CPU стабильность	хорошая	хорошая	хорошая	хорошая	Все
I/O стабильность	средняя	низкая	высокая	средняя	Эксп 3

Общий вывод: Все эксперименты подтверждают стабильность системы под нагрузкой, но выявляют необходимость оптимизации работы с памятью и сложных JOIN-запросов. Наиболее сбалансированные показатели демонстрирует эксперимент 2.

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Общий итог по анализу результатов экспериментов

1. Основные выводы о влиянии параметра shared_buffers

Незначительное влияние на производительность: Увеличение shared_buffers с 2GB до 4-6GB не привело к существенному изменению операционной скорости. Различия составляют всего 0,54-0,62%, что находится в пределах статистической погрешности.
Парадоксальный эффект на ожидания: При увеличении shared_buffers до 5GB и 6GB наблюдается рост количества ожиданий СУБД на 5,75% и 6,50% соответственно, что указывает на возможные блокировки и конкуренцию за ресурсы.

2. Общая характеристика экспериментов

Стабильность методологии: Все четыре эксперимента проведены по единой методологии с одинаковой продолжительностью (109 минут) и схемой нагрузки (плавный рост от 5 до 22 сессий).
Воспроизводимость результатов: Эксперименты демонстрируют схожую динамику снижения производительности с течением времени (углы наклона -44,27...-44,45) при высоких коэффициентах детерминации (R²=0,95-0,96).

3. Ключевые факторы, влияющие на производительность

3.1 Типы выполняемых запросов

SELECT BY PK: Минимальные IO ожидания, стабильная производительность
GROUP BY/ORDER BY: Умеренная нагрузка, возможны временные операции
JOIN запросы: Наибольшая ресурсоемкость, вызывают устойчивые IO ожидания

3.2 Доминирующие типы ожиданий

TIMEOUT: Преобладающий тип (80-90% от общего числа ожиданий)
LWLOCK (Lightweight locks): Значительная доля в структуре ожиданий
IO ожидания: Появляются только при выполнении запросов с большими объемами данных

4. Анализ подсистем

4.1 Дисковая подсистема (iostat)

Отсутствие нагрузки на устройство vdd: Все эксперименты показали нулевую утилизацию диска, что может указывать на:
- Направление нагрузки на другие дисковые устройства
- Достаточность оперативной памяти для кэширования
- Особенности конфигурации тестовой среды

4.2 Системные ресурсы (vmstat)

CPU как узкое место: Стабильно высокое пользовательское время CPU (89-95%)
Проблемы с управлением памятью: Значительные различия в использовании свопа между экспериментами (от 58MB до 190MB)
Адекватное масштабирование: Линейный рост процессов при увеличении нагрузки

Общий вывод

Серия экспериментов подтвердила стабильность работы PostgreSQL под различными типами нагрузки. Увеличение параметра shared_buffers не оказало существенного влияния на производительность в данной тестовой конфигурации, что может указывать на:

Достаточность базового значения (2GB) для данной нагрузки
Преобладание других факторов, ограничивающих производительность (CPU, типы запросов, блокировки)

Наиболее значимыми факторами производительности оказались:

Типы выполняемых запросов (особенно JOIN-операции)
Управление блокировками (LWLOCK)
Эффективность использования оперативной памяти
Нагрузка на CPU

Методология испытаний с использованием pg_expecto показала свою эффективность для комплексного анализа производительности СУБД, позволяя выявлять узкие места на разных уровнях системы.

Анализ причин ошибки первоначального прогноза

Промпт для нейросети DeepSeek

Отчет по анализу причин ошибочности начальной гипотезы и итогам экспериментов

1. Анализ причин ошибочности начальной гипотезы

Начальная гипотеза предполагала, что увеличение shared_buffers с 2 ГБ до 4–6 ГБ приведёт к значимому улучшению производительности за счёт снижения физических чтений с диска и уменьшения нагрузки на подсистему ввода-вывода. Однако результаты экспериментов не подтвердили эти ожидания, что обусловлено следующими причинами:

Дисковая подсистема не являлась узким местом
Данные iostat показали нулевую утилизацию диска (vdd), что указывает на отсутствие значимой нагрузки на хранилище. В таких условиях увеличение кэширования в shared_buffers не могло дать заметного прироста производительности.
Доминирующим ресурсом оказался CPU
Показатели vmstat выявили стабильно высокое пользовательское время CPU (89–95%), что свидетельствует о процессорном ограничении. Увеличение shared_buffers не снижает нагрузку на CPU, а в некоторых случаях даже усиливает конкуренцию за ресурсы.
Рост числа ожиданий и блокировок
При увеличении shared_buffers до 5–6 ГБ наблюдался рост событий LWLOCK и общего количества ожиданий СУБД (до 6,5%). Это подтверждает гипотезу о рисках избыточного размера буфера, но в данном случае негативный эффект проявился раньше ожидаемого.
Неучтённые факторы нагрузки
Характер запросов (особенно JOIN-операции и агрегации) и структура данных (~20 ГБ) оказались более значимыми, чем размер shared_buffers. Оптимизация выполнения запросов и управление блокировками имели большее влияние на производительность.
Эффективность базовой конфигурации
Значение shared_buffers=2 ГБ оказалось достаточным для данной тестовой нагрузки, что указывает на сбалансированность базовой конфигурации.

2. Общие итоги серии экспериментов

Минимальное влияние shared_buffers
Увеличение параметра не привело к статистически значимому улучшению производительности. Различия между экспериментами составили менее 1%, что находится в пределах погрешности измерений.
Стабильность и воспроизводимость результатов
Все эксперименты выполнены по единой методологии, показали схожую динамику снижения производительности во времени и высокую согласованность данных (R² = 0,95–0,96).
Ключевые факторы производительности
1. Типы запросов — JOIN-операции вызывали наибольшую нагрузку и устойчивые IO-ожидания.
2. Блокировки — события LWLOCK и TIMEOUT составляли основную долю ожиданий.
3. Использование CPU — процессорное время было основным ограничивающим ресурсом.
4. Управление памятью — значительные колебания в использовании свопа указывают на потенциальные проблемы с распределением памяти.
Отсутствие нагрузки на диск
Нулевая утилизация диска vdd во всех экспериментах позволяет сделать вывод о достаточности оперативной памяти для кэширования или особенностях тестовой среды.

3. Рекомендации по дальнейшим исследованиям

Сфокусироваться на оптимизации запросов, особенно с JOIN и агрегациями.
Исследовать влияние параметров, связанных с управлением блокировками и параллельным выполнением.
Проанализировать использование памяти ОС и взаимодействие shared_buffers с файловым кэшем.
Рассмотреть возможность увеличения вычислительных ресурсов (CPU) или оптимизации рабочих нагрузок.

4. Заключение

Начальная гипотеза переоценила влияние параметра shared_buffers в условиях данной тестовой среды, где производительность ограничивалась CPU и характером запросов, а не дисковыми операциями. Эксперименты подтвердили, что увеличение shared_buffers сверх оптимального значения может приводить к росту конкуренции за ресурсы без заметного выигрыша в производительности.

Методология нагрузочного тестирования с использованием pg_expecto показала свою эффективность для комплексной диагностики производительности СУБД и выявления реальных узких мест.

Отчёт составлен на основе анализа предоставленных документов «Начальная гипотеза нейросети.txt» и «Общий итог.txt».

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13 дек. 2025 г.

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25.11.25 13:31 mickaelroques52

CRYPTO TRACING AND INVESTIGATION EXPERT: HOW TO RECOVER STOLEN CRYPTO_HIRE RAPID DIGITAL RECOVERY
25.11.25 13:31 mickaelroques52

I’ve always considered myself a careful person when it comes to money, but even the most cautious people can be fooled. A few months ago, I invested some of my Bitcoin into what I believed was a legitimate platform. Everything seemed right, professional website, live chat support and even convincing testimonials. I thought I had done my homework. But when I tried to withdraw my funds, everything fell apart. My account was blocked, the so-called support team disappeared and I realized I had been scammed. The shock was overwhelming. I couldn’t believe I had fallen for it. That Bitcoin represented years of savings and sacrifices and it felt like everything had been stolen from me in seconds. I didn’t sleep for days and I was angry at myself for trusting the wrong people. In my desperation, I started searching for solutions and came across Rapid Digital Recovery. At first, I thought it was just another promise that would lead nowhere. But after speaking with them, I realized this was different. They were professional, clear and understanding. They explained exactly how they track stolen funds through blockchain forensics and what steps would be taken in my case. I gave them all the transaction details and they immediately got to work. What impressed me most was their transparency, they gave me updates regularly and kept me involved in the process. After weeks of investigation, they achieved what I thought was impossible: they recovered my stolen Bitcoin and safely returned it to my wallet. The relief I felt that day is indescribable. I went from feeling hopeless and broken to feeling like I had been given a second chance. I am forever grateful to Rapid Digital Recovery. They didn’t just recover my money, they restored my peace of mind. If you’re reading this because you’ve been scammed, please know you’re not alone and that recovery is possible. I’m living proof that with the right help, you can get your funds back... Contact Info Below WhatSapp: + 1 414 807 1485 Email: rapiddigitalrecovery (@) execs. com Telegram: + 1 680 5881 631
26.11.25 18:18 harristhomas7376

"In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
26.11.25 18:20 harristhomas7376

"In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
26.11.25 19:13 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site
26.11.25 19:13 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site
26.11.25 19:13 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site
27.11.25 10:56 harristhomas7376

"In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
27.11.25 10:56 harristhomas7376

"In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
27.11.25 20:04 deborah113

Scammed Crypto Asset Recovery Solution Hire iFORCE HACKER RECOVERY When I traded online, I lost both my investment money and the anticipated gains. Before permitting any withdrawals, the site kept requesting more money, and soon I recognized I had been duped. It was really hard to deal with the loss after their customer service ceased responding. I saw a Facebook testimonial about how iForce Hacker Recovery assisted a victim of fraud in getting back the bitcoin she had transferred to con artists. I contacted iForce Hacker Recovery, submitted all relevant case paperwork, and meticulously followed the guidelines. I'm relieved that I was eventually able to get my money back, including the gains that were initially displayed on my account. I'm sharing my story to let others who have been conned know that you can recover your money. WhatsApp: +1 240-803-3706 Email: iforcehk @ consultant. c om Website: ht tps:/ /iforcehackers. c om
27.11.25 23:48 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
27.11.25 23:48 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
28.11.25 00:08 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected])WhatsApp at +44 736-644-5035. ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it.
28.11.25 11:15 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
28.11.25 11:15 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
28.11.25 11:43 elizabethmadison

My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site (Email [email protected])
28.11.25 11:43 elizabethmadison

My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site (Email [email protected])
29.11.25 12:35 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
29.11.25 12:35 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
29.11.25 12:35 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
30.11.25 20:37 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
01.12.25 12:27 Thomas Muller

YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with, website https://greatwhiprecoveryc.wixsite.com/greatwhip-site text +1(406)2729101 email [email protected]
01.12.25 12:27 Thomas Muller

YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with, website https://greatwhiprecoveryc.wixsite.com/greatwhip-site text +1(406)2729101 email [email protected]
01.12.25 23:45 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
01.12.25 23:45 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
02.12.25 02:21 donald121

In 2025 alone, hackers stole over $1.5 billion in digital assets from users worldwide. That's a wake-up call for anyone holding crypto. Theft hits hard because once funds move, they're tough to get back. Common ways it happens include phishing emails that trick you into giving up keys, big exchange breaches, or malware sneaking into your wallet. Marie guide walks you through steps to recover stolen cryptocurrency. You'll learn quick actions to stop more loss, how to trace funds, and ways to fight back legally. Plus, tips to avoid this mess next time. reach her (infocyberrecoveryinc@gmail com and whatsapp:+1 7127594675)
02.12.25 15:05 Matt Kegan

Reach out to SolidBlock Forensics if you want to get back your coins from fake crypto investment or your wallet was compromised and all your coins gone. SolidBlock Forensics provide deep ethical analysis and investigation that enables them to trace these schemes, and recover all your funds. Their services are professional and reliable.
03.12.25 09:22 tyrelldavis1

I still recall the day I fell victim to an online scam, losing a substantial amount of money to a cunning fraudster. The feeling of helplessness and despair that followed was overwhelming, and I thought I had lost all hope of ever recovering my stolen funds. However, after months of searching for a solution, I stumbled upon a beacon of hope - GRAYWARE TECH SERVICE, a highly reputable and exceptionally skilled investigative and recovery firm. Their team of expert cybersecurity professionals specializes in tracking and retrieving money lost to internet fraud, and I was impressed by their unwavering dedication to helping victims like me. With their extensive knowledge and cutting-edge technology, they were able to navigate the complex world of online finance and identify the culprits behind my loss. What struck me most about GRAYWARE TECH SERVICE was their unparalleled expertise and exceptional customer service. They took the time to understand my situation, provided me with regular updates, and kept me informed throughout the entire recovery process. Their transparency and professionalism were truly reassuring, and I felt confident that I had finally found a reliable partner to help me recover my stolen money. Thanks to GRAYWARE TECH SERVICE, I was able to recover a significant portion of my lost funds, and I am forever grateful for their assistance. Their success in retrieving my money not only restored my financial stability but also restored my faith in the ability of authorities to combat online fraud. If you have fallen victim to internet scams, I highly recommend reaching out to GRAYWARE TECH SERVICE - their expertise and dedication to recovering stolen funds are unparalleled, and they may be your only hope for retrieving what is rightfully yours. You can reach them on whatsapp+18582759508 web at ( https://graywaretechservice.com/ ) also on Mail: ([email protected]
03.12.25 21:01 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.
03.12.25 22:17 Tonerdomark

I lost $300,000 in USDC to a phishing scam. Scammers tricked me with a fake wallet link. They drained my account fast. I felt hopeless. No way to get it back. Then Sylvester stepped in. His skills traced the funds. He recovered every bit. USDC is a stablecoin tied to the dollar. Phishing scams hit hard in crypto. They fool you with urgent emails or sites. Billions vanish each year this way. Sylvester knows blockchain tracks. He used tools to follow the trail. I got my money back in weeks. Skills like his turn loss to win. Don't wait if scammed. Contact Mr. Sylvester now. Email: yt7cracker@gmail. com. WhatsApp only: + 1 512 577 7957 or + 44 7428 662701. He helped me. He can help you.
04.12.25 01:37 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
04.12.25 01:37 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
04.12.25 04:35 Tonerdomark

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04.12.25 10:32 Tonerdomark

I lost $300,000 in USDC to a phishing scam. Scammers tricked me with a fake wallet link. They drained my account fast. I felt hopeless. No way to get it back. Then Sylvester stepped in. His skills traced the funds. He recovered every bit. USDC is a stablecoin tied to the dollar. Phishing scams hit hard in crypto. They fool you with urgent emails or sites. Billions vanish each year this way. Sylvester knows blockchain tracks. He used tools to follow the trail. I got my money back in weeks. Skills like his turn loss to win. Don't wait if scammed. Contact Mr. Sylvester now. Email: [email protected]. WhatsApp only: + 1 512 577 7957 or + 44 7428 662701. He helped me. He can help you.
04.12.25 18:25 smithhazael

Hire Proficient Expert Consultant For any form of lost crypto "A man in Indonesia tragically took his own life after losing his family's savings to a scam. The shame and blame were too much to bear. It's heartbreaking to think he might still be alive if he knew help existed. "PROFICIENT EXPERT CONSULTANTS, I worked alongside PROFICIENT EXPERT CONSULTANTS when I lost my funds to an investment platform on Telegram. PROFICIENT EXPERT CONSULTANTS did a praiseworthy job, tracked and successfully recovered all my lost funds a total of $770,000 within 48hours after contacting them, with their verse experience in recovery issues and top tier skills they were able to transfer back all my funds into my account, to top it up I had full access to my account and immediately converted it to cash, they handled my case with professionalism and empathy and successfully recovered all my lost funds, with so many good reviews about PROFICIENT EXPERT CONSULTANTS, I’m glad I followed my instincts after reading all the reviews and I was able to recovery everything I thought I had lost, don’t commit suicide if in any case you are caught in the same situation, contact: Proficientexpert@consultant. com Telegram: @ PROFICIENTEXPERT, the reliable experts in recovery.
04.12.25 21:45 elizabethrush89

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04.12.25 21:45 elizabethrush89

God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
05.12.25 08:35 into11

The digital world of cryptocurrency offers big chances, but it also hides tricky scams. Losing your crypto to fraud feels awful. It can leave you feeling lost and violated. This guide tells you what to do right away if a crypto scam has hit you. These steps can help you get funds back or stop more trouble. Knowing what to do fast can change everything,reach marie ([email protected] and whatsapp:+1 7127594675)
05.12.25 08:48 Tonerdomark

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06.12.25 01:44 Tonerdomark

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06.12.25 01:48 Tonerdomark

SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]
06.12.25 10:36 Thomas Muller

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06.12.25 10:36 Thomas Muller

YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with, website https://greatwhiprecoveryc.wixsite.com/greatwhip-site text +1(406)2729101 email [email protected]
06.12.25 10:39 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
06.12.25 10:42 michaeldavenport238

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
07.12.25 08:43 Tonerdomark

SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]
08.12.25 02:17 liam

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08.12.25 09:07 Tonerdomark

SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]
09.12.25 00:18 swanky

For a long time, I had heard tales of individuals striking it rich through cryptocurrency investments, but I had little knowledge of how the system operated. The potential for financial gain piqued my interest, and I decided to dive in and invest. To help me navigate this complex landscape, I joined a group of online traders who promised to guide me through the investment process. Their confidence and expertise made me feel reassured about my decision.After spending some time learning from them and observing their trading strategies, I felt compelled to invest a substantial amount of money to which i lost, now in search of recovering my funds i got referred to anthonydavies on telegram a funds recovery specialist with his team help i was able to get back $300000 of my usdc back. you can reach him via anthonydaviestech AT gmail dot com
09.12.25 01:01 Tonerdomark

SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = Yt7CRACKER@gmail. com
09.12.25 05:44 swanky

For a long time, I had heard tales of individuals striking it rich through cryptocurrency investments, but I had little knowledge of how the system operated. The potential for financial gain piqued my interest, and I decided to dive in and invest. To help me navigate this complex landscape, I joined a group of online traders who promised to guide me through the investment process. Their confidence and expertise made me feel reassured about my decision.After spending some time learning from them and observing their trading strategies, I felt compelled to invest a substantial amount of money to which i lost, now in search of recovering my funds i got referred to anthonydavies on telegram a funds recovery specialist with his team help i was able to get back $300000 of my usdc back. you can reach him via anthonydaviestech AT gmail dot com
09.12.25 10:24 lane3215

It is distressing to lose USDT to a bitcoin wallet hack. Although challenging, recovering stolen USDT is feasible. Your chances increase if you move swiftly and strategically. Marie can help you with reporting the theft, recovering USDT, and taking immediate action. You can reach her via mail at [email protected], WhatsApp at +1 7127594675.
09.12.25 10:25 lane3215

It is distressing to lose USDT to a bitcoin wallet hack. Although challenging, recovering stolen USDT is feasible. Your chances increase if you move swiftly and strategically. Marie can help you with reporting the theft, recovering USDT, and taking immediate action. You can reach her via mail at [email protected], WhatsApp at +1 7127594675.
09.12.25 14:16 Matt Kegan

Grateful i came across SolidBlock Forensics. After investing in crypto trade and couldn't make withdrawals, it dawned on me something was wrong. They kept on asking for taxes, fees for maintenance, and more money for admin reasons. But being represented by SolidBlock Forensics, i was able to file reports, and finally, received all my investments with returns. Its great to know we have professionals that handle such issues and get the job done.
12.12.25 22:38 swanky

After reading some reviews on how [anthonydaviestech AT gmail dot (c om) helps people recover money and Cryptocurrencies lost to scammers, I decided to contact him to help me recover mine which I lost in february 2025. To my surprise he was able to trace the USDT from the first wallet to all the wallets it has been sent to. He moved them out of those wallets and returned them back to mine and even added extra to me, it felt like magic.
13.12.25 08:22 Natasha Williams

I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101
13.12.25 08:23 Natasha Williams

I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101
13.12.25 08:28 Natasha Williams

I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101
13.12.25 15:29 Anthonymorphy30

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13.12.25 18:52 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101
13.12.25 18:54 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101
18.12.25 12:12 Anthony Irvin

I forgot my password 🔑 -- But they helped me recover my entire wallet. Successful Brute-Force Hack... On January 16, 2023, INTELLIGENCE CYBER WIZARD successfully hacked my Langerhans.DAT Android DOGECOIN wallet to recover the lost/forgotten spending PIN, necessary for spending funds. It took them only three (3) days to complete the task. It turned out that the spending PIN was only ten (10) digits long, which I had mistakenly believed to be twelve. Once Intelligence Cyber Wizard discovered and recited the full ten-digit PIN to me, based on "clues" I had given them and that only I knew, it reminded me a bit of when I set up the PIN back in 2015. In my case, I made the mistake of not writing it down. The wallet file in this case contained a little over 10.5 million DOGECOINs installed on it, spread across a total of 15 DOGE public wallet addresses and their corresponding private keys. When I acquired the 10.5 million coins in 2015, the total cost to me was only around $1,500, based on the current face value of DOGE at the time, which was approximately $0.0001 per coin. The wallet file had been inaccessible to me since December 27, 2015, after I realized I had forgotten my spending PIN. Before finding Intelligence Cyber Wizard, I had had several other encounters with people who were unsuccessful in recovering the wallet's spending PIN. So, as it turned out, I actually ended up much better off financially because I had forgotten my spending PIN. Had I not forgotten, I would have traded or sold the 10.5 million coins in question during the 2017 cryptocurrency bull run, along with another 40 million DOGECOIN that I sold that year. Even after accounting for a portion of the recovered coins that was awarded to Intelligence Cyber Wizard for their efforts, I still gained a significant financial advantage. Therefore, I am deeply grateful to Intelligence Cyber Wizard, for the swift and successful recovery of my wallet. Their efforts have undoubtedly had a truly transformative impact on my life in the long run. I highly recommend Intelligence Cyber Wizard services if you or someone you know has a wallet that needs hacking and whose password or spending PIN has been lost or forgotten. Contact Intelligence Cyber Wizard via WhatsApp or email. WhatsApp +1 (219) 424-7566 Email: intelligencecyberwizard @ gmail.com Email: intelligencecyberwizard @ cyber-wizard.com Website: https: //intelligence-cyber-wizard.web node.page
18.12.25 13:24 Regency Victorian

I was scammed and left penniless, until a cryptocurrency recovery expert helped me. INTELLIGENCE CYBER WIZARD - Cryptocurrency Recovery. I was scammed out of a huge amount of money and, devastated, I started looking for help. Someone recommended an expert and private investigator, Intelligence Cyber Wizard. I emailed him, and as soon as I explained what had happened, he immediately told me it had all been a setup. He put my case together, and within a few days, we got a result: I recovered all my money! Intelligence Cyber Wizard was amazing, professional, and efficient; he guided me through the entire process. I can't thank him and his forensic team enough. I can live again! His contact information is below. WhatsApp +1 (219) 424-7566 Email: [email protected] Email: [email protected] Website: https://intelligence-cyber-wizard.webnode.page
18.12.25 20:54 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101
18.12.25 20:55 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101
18.12.25 21:02 James Robert

This company call GREAT WHIP RECOVERY CYBER SERVICES was honest from the beginning. No false promises – just results. Call:+1(406)2729101
18.12.25 21:02 James Robert

I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have access to my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101
20.12.25 16:03 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.
06.01.26 00:54 justineluscacio

I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin. I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)
06.01.26 15:05 justineluscacio

I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin. I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)
06.01.26 16:06 justineluscacio

Successful Bitcoin Recovery Testimonials in Europe, USA, UK, Asia, Canada, South Africa.
06.01.26 16:07 justineluscacio

Successful Bitcoin Recovery Testimonials in Europe, USA, UK, Asia, Canada, South Africa. BITCOIN RECOVERY EXPERT USDT RECOVERY EXPERT ETH RECOVERY EXPERT How do I hire a hacker to help me recover my lost funds? How to Recover Money Lost to an Online Scam How to recover lost or stolen cryptocurrency Best recovery experts for cryptocurrency DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)
06.01.26 16:14 justineluscacio

I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin. I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)
06.01.26 17:03 Matt Kegan

Reach out to SolidBlock Forensics if you want to get back your coins from fake crypto investment or your wallet was compromised and all your coins gone. SolidBlock Forensics provide deep ethical analysis and investigation that enables them to trace these schemes, and recover all your funds. Their services are professional and reliable. http://www.solidblockforensics.com
09.01.26 17:11 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.
10.01.26 14:28 justineluscacio

I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin. I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)
11.01.26 03:16 austinjarvis

I lost £75,000 in a Bitcoin scam. Scammers used deepfake videos to make it seem like Elon Musk himself pitched the deal. These deepfakes swap faces onto real people with AI. They look so real you can't spot the trick at first. They drew me in with talk of fast cash. Double your money in weeks, they said. Videos showed Musk explaining simple steps to join. I bit. Sent my Bitcoin bit by bit. First small amounts worked. Then I dumped my full savings. Boom. Funds vanished. No more contact. My bank account empty. Bills piled up. Loans to cover rent and food. Sleep gone. Stress hit hard. Felt like my whole life crashed. A mate saw my pain. He shared his own story from last year. Same scam type. He pointed me to Sylvester, a recovery agent. Reach him at Yt7cracker@gmail . com. Or WhatsApp + 1 512 577 7957. Or + 44 7428 662701. Sylvester got to work fast. Tracked the blockchain trails. Dealt with exchanges. Fought the scammers' tricks. Weeks later, my Bitcoin came back. Even the profits they promised. Debt lifted. Life back on track. If you're hit, contact him now.
12.01.26 16:24 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.
13:04 Kelvin Alfons

Hello everyone. I’d like to share my personal experience from one of the most challenging times in my life. I’m based in Sydney, Australia, and on November 13, 2025, I fell victim to a fraudulent cryptocurrency investment platform that promised substantial financial growth. Believing their claims, I invested a total of $220,000 with the expectation of earning solid returns. However, when I attempted to withdraw my funds, all communication abruptly stopped. My calls were ignored, my emails went unanswered, and I was left feeling completely powerless. Like many others, I had heard that Bitcoin transactions are impossible to trace, so I assumed my money was lost forever. After some time, I discovered information about GREAT WHIP RECOVERY CYBER SERVICES, a reputable digital asset recovery firm. I decided to reach out to them, and to my astonishment, they were able to help me recover the full amount I had lost. I’m sharing my story in the hope that it may help someone else who is going through a similar situation and looking for support. Their contact is, Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site Email:[email protected] Call: +1(406)2729101
13:05 Kelvin Alfons

Hello everyone. I’d like to share my personal experience from one of the most challenging times in my life. I’m based in Sydney, Australia, and on November 13, 2025, I fell victim to a fraudulent cryptocurrency investment platform that promised substantial financial growth. Believing their claims, I invested a total of $220,000 with the expectation of earning solid returns. However, when I attempted to withdraw my funds, all communication abruptly stopped. My calls were ignored, my emails went unanswered, and I was left feeling completely powerless. Like many others, I had heard that Bitcoin transactions are impossible to trace, so I assumed my money was lost forever. After some time, I discovered information about GREAT WHIP RECOVERY CYBER SERVICES, a reputable digital asset recovery firm. I decided to reach out to them, and to my astonishment, they were able to help me recover the full amount I had lost. I’m sharing my story in the hope that it may help someone else who is going through a similar situation and looking for support. Their contact is, Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site Email:[email protected] Call: +1(406)2729101
15:53 VERONICAFREDDIE809

Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

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Н Новости

PG_EXPECTO: Анализ влияния размера shared_buffers на производительность СУБД PostgreSQL

Предисловие

Задача

Методология исследования

Тестовая среда, инструменты и конфигурация СУБД:

Начальная гипотеза нейросети

Входные данные

Гипотеза о влиянии увеличения shared_buffers

1. Признаки в wait_event_type СУБД:

2. Признаки в метриках инфраструктуры:

3. Ключевые индикаторы проблем с oversized shared_buffers:

Результаты экспериментов по итогам нагрузочных тестирований

Операционная скорость

SPEED-4GB / SPEED-2GB

SPEED-5GB / SPEED-2GB

SPEED-6GB / SPEED-2GB

Ожидания СУБД

WAITINGS-4GB / WAITINGS-2GB

WAITINGS-5GB / WAITINGS-2GB

WAITINGS-6GB / WAITINGS-2GB

Входные данные для анализа результатов экспериментов

Регрессионный и корреляционный анализ производительности и ожиданий СУБД

Статистические данные по производительности и ожиданиям СУБД

Статистические данные iostat

Статистические данные vmstat

1. Анализ операционной скорости и ожиданий СУБД

Сравнительный анализ экспериментов 1-4

1. Общая характеристика экспериментов

2. Сравнительный анализ производительности (SPEED)

3. Сравнительный анализ ожиданий СУБД (WAITINGS)

4. Анализ типов ожиданий (wait_event_type)

Эксперимент 1:

Эксперимент 2:

Эксперимент 3:

Эксперимент 4:

5. Анализ событий ожидания (wait_event)

6. Связь с выполняемыми запросами

7. Влияние конфигурации СУБД

8. Итоговый вывод по серии экспериментов

Ключевые отличия между экспериментами:

Общие тенденции:

2. Анализ производительности подсистемы IO

1. Общие наблюдения

4. Итог по серии экспериментов

2. Анализ производительности инфраструктуры (vmstat)

1. Ключевые отличия в метриках vmstat между экспериментами

Память (Memory):

Процессы (Procs_r):

CPU (процессор):

Ввод-вывод (I/O):

Системные метрики:

2. Связь с нагрузочным тестированием

3. Анализ тестовых запросов (plans.txt)

4. Итоги по серии экспериментов

Ключевые выводы:

Сравнительная таблица итоговых показателей:

Общий итог по анализу результатов экспериментов

1. Основные выводы о влиянии параметра shared_buffers

2. Общая характеристика экспериментов

3. Ключевые факторы, влияющие на производительность

3.1 Типы выполняемых запросов

3.2 Доминирующие типы ожиданий

4. Анализ подсистем

4.1 Дисковая подсистема (iostat)

4.2 Системные ресурсы (vmstat)

Общий вывод

Анализ причин ошибки первоначального прогноза

Отчет по анализу причин ошибочности начальной гипотезы и итогам экспериментов

1. Анализ причин ошибочности начальной гипотезы

2. Общие итоги серии экспериментов

3. Рекомендации по дальнейшим исследованиям

4. Заключение

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