Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

=====================================
2025-12-08 13:37:40 0x7fd82448c700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 19 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 422 srv_active, 0 srv_shutdown, 811 srv_idle
srv_master_thread log flush and writes: 1233
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 1526
OS WAIT ARRAY INFO: signal count 1253
RW-shared spins 0, rounds 909, OS waits 453
RW-excl spins 0, rounds 184, OS waits 6
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 909.00 RW-shared, 184.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 38601
Purge done for trx's n:o < 38601 undo n:o < 0 state: running
History list length 6
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422041297871512, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422041297867256, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422041297863000, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422041297858744, 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
838 OS file reads, 5060 OS file writes, 3051 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 6.32 writes/s, 3.00 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 9 buffer(s)
Hash table size 69257, node heap has 2 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 3 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
1.74 hash searches/s, 1.68 non-hash searches/s
---
LOG
---
Log sequence number 9961375
Log flushed up to   9961375
Pages flushed up to 9961375
Last checkpoint at  9961366
0 pending log flushes, 0 pending chkp writes
1920 log i/o's done, 1.84 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15150
Database pages     810
Old database pages 319
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 679, created 131, written 2762
0.00 reads/s, 0.00 creates/s, 4.11 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: 810, 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=902, Main thread ID=140565547050752, state: sleeping
Number of rows inserted 1, updated 584, deleted 0, read 517158
0.00 inserts/s, 0.58 updates/s, 0.00 deletes/s, 1.32 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 8
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================