Storage engines

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Փոփոխականներ | Buffer Pool | InnoDB կարգավիճակը ]

=====================================
2026-02-22 00:54:23 0x7f348054e700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 17 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1826 srv_active, 0 srv_shutdown, 1275 srv_idle
srv_master_thread log flush and writes: 3101
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 5192
OS WAIT ARRAY INFO: signal count 3810
RW-shared spins 0, rounds 2301, OS waits 1149
RW-excl spins 0, rounds 780, OS waits 24
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2301.00 RW-shared, 780.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 43054
Purge done for trx's n:o < 43054 undo n:o < 0 state: running
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421338450342392, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421338450338136, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421338450333880, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
717 OS file reads, 20871 OS file writes, 11701 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 8.76 writes/s, 4.53 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
3.29 hash searches/s, 1.00 non-hash searches/s
---
LOG
---
Log sequence number 12748785
Log flushed up to   12748664
Pages flushed up to 12748438
Last checkpoint at  12745928
0 pending log flushes, 0 pending chkp writes
6980 log i/o's done, 2.47 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15330
Database pages     692
Old database pages 274
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.019
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 558, created 134, written 12316
0.00 reads/s, 0.00 creates/s, 5.59 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 692, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=899, Main thread ID=139862699132672, state: sleeping
Number of rows inserted 1, updated 2781, deleted 0, read 13765
0.00 inserts/s, 0.82 updates/s, 0.00 deletes/s, 1.82 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================