Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-09-15 20:33:03 0x53a0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 17 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 23540 srv_active, 0 srv_shutdown, 553473 srv_idle
srv_master_thread log flush and writes: 577013
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 50788
OS WAIT ARRAY INFO: signal count 50111
RW-shared spins 32906, rounds 975720, OS waits 32309
RW-excl spins 117, rounds 2486, OS waits 81
RW-sx spins 9, rounds 270, OS waits 9
Spin rounds per wait: 29.65 RW-shared, 21.25 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 5137089
Purge done for trx's n:o < 5137089 undo n:o < 0 state: running
History list length 7
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283590527201568, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283590527197400, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283590527193232, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
178764 OS file reads, 276572 OS file writes, 196854 OS fsyncs
4.24 reads/s, 16384 avg bytes/read, 16.82 writes/s, 6.71 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
10.82 hash searches/s, 41.82 non-hash searches/s
---
LOG
---
Log sequence number 45469826992
Log flushed up to   45469826972
Pages flushed up to 45469822420
Last checkpoint at  45469762418
0 pending log flushes, 0 pending chkp writes
117090 log i/o's done, 4.41 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       736
Database pages     262
Old database pages 0
Modified db pages  11
Percent of dirty pages(LRU & free pages): 1.101
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 17986, not young 492725
0.00 youngs/s, 0.00 non-youngs/s
Pages read 178662, created 690, written 131403
4.24 reads/s, 0.24 creates/s, 11.41 writes/s
Buffer pool hit rate 973 / 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: 262, unzip_LRU len: 0
I/O sum[1346]:cur[1], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=5104, Main thread ID=6792, state: sleeping
Number of rows inserted 632, updated 27080, deleted 24, read 54183486
0.00 inserts/s, 3.47 updates/s, 0.00 deletes/s, 28.53 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 10354
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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