Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-08-01 09:47:05 0x1f0c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 49 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1056831 srv_active, 0 srv_shutdown, 376048 srv_idle
srv_master_thread log flush and writes: 1432879
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 980793
OS WAIT ARRAY INFO: signal count 855953
RW-shared spins 406146, rounds 11644451, OS waits 385683
RW-excl spins 5872, rounds 161846, OS waits 5149
RW-sx spins 287, rounds 7996, OS waits 237
Spin rounds per wait: 28.67 RW-shared, 27.56 RW-excl, 27.86 RW-sx
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TRANSACTIONS
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Trx id counter 69928066
Purge done for trx's n:o < 69928066 undo n:o < 0 state: running but idle
History list length 3
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 282927380103528, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282927380099360, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282927380095192, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282927380091024, 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
1902165 OS file reads, 14944915 OS file writes, 8391663 OS fsyncs
1.41 reads/s, 16384 avg bytes/read, 13.08 writes/s, 7.10 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 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 1 buffer(s)
24.88 hash searches/s, 44.67 non-hash searches/s
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LOG
---
Log sequence number 43620077613
Log flushed up to   43620077613
Pages flushed up to 43620077613
Last checkpoint at  43620074571
0 pending log flushes, 0 pending chkp writes
4291224 log i/o's done, 3.61 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       740
Database pages     258
Old database pages 0
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 13409, not young 857540
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1902051, created 64670, written 9092822
0.60 reads/s, 0.20 creates/s, 6.40 writes/s
Buffer pool hit rate 994 / 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: 258, unzip_LRU len: 0
I/O sum[498]:cur[11], 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=6012, Main thread ID=8116, state: sleeping
Number of rows inserted 722, updated 2384005, deleted 40, read 102675333
0.00 inserts/s, 2.12 updates/s, 0.00 deletes/s, 20.92 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 212879
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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