Moteurs de stockage
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variables
|
Mémoire tampon
|
État InnoDB
]
=====================================
2026-06-09 12:29:11 0xb314 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 11 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 2824 srv_active, 0 srv_shutdown, 231217 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 11919
OS WAIT ARRAY INFO: signal count 10905
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 4013004
Purge done for trx's n:o < 4012944 undo n:o < 0 state: running but idle
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283738958195840, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958198168, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958201272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958198944, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958199720, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958197392, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958195064, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283738958194288, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: wait Windows aio ((null))
I/O thread 1 state: wait Windows aio (insert buffer thread)
I/O thread 2 state: wait Windows aio (read thread)
I/O thread 3 state: wait Windows aio (read thread)
I/O thread 4 state: wait Windows aio (read thread)
I/O thread 5 state: wait Windows aio (read thread)
I/O thread 6 state: wait Windows aio (write thread)
I/O thread 7 state: wait Windows aio (write thread)
I/O thread 8 state: wait Windows aio (write thread)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
ibuf aio reads:
Pending flushes (fsync) log: 1; buffer pool: 0
9982 OS file reads, 40904 OS file writes, 29944 OS fsyncs
0 pending preads, 1 pending pwrites
2.99 reads/s, 16384 avg bytes/read, 21.62 writes/s, 16.17 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 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 3 buffer(s)
Hash table size 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 2 buffer(s)
Hash table size 8747, node heap has 1 buffer(s)
2026.09 hash searches/s, 487.14 non-hash searches/s
---
LOG
---
Log sequence number 149281559
Log buffer assigned up to 149281559
Log buffer completed up to 149281559
Log written up to 149281549
Log flushed up to 149281436
Added dirty pages up to 149281559
Pages flushed up to 149235073
Last checkpoint at 149235073
Log minimum file id is 37
Log maximum file id is 39
19845 log i/o's done, 12.75 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 0
Dictionary memory allocated 1075497
Buffer pool size 2047
Free buffers 1023
Database pages 1008
Old database pages 352
Modified db pages 67
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 13490, not young 60291
3.16 youngs/s, 138.33 non-youngs/s
Pages read 9289, created 364, written 14489
2.99 reads/s, 0.00 creates/s, 6.50 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 21 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1008, unzip_LRU len: 0
I/O sum[902]:cur[3], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=11924, Main thread ID=7792 , state=sleeping
Number of rows inserted 2961, updated 2424, deleted 0, read 39683
0.00 inserts/s, 2.64 updates/s, 0.00 deletes/s, 14.09 reads/s
Number of system rows inserted 8, updated 1250, deleted 8, read 2928106
0.00 inserts/s, 0.09 updates/s, 0.00 deletes/s, 1922.01 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
