Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2025-09-09 09:35:16 0x18d0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 9 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 457896 srv_active, 0 srv_shutdown, 30973 srv_idle
srv_master_thread log flush and writes: 488869
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 299529
OS WAIT ARRAY INFO: signal count 239912
RW-shared spins 120931, rounds 2778752, OS waits 90004
RW-excl spins 5336, rounds 126626, OS waits 3760
RW-sx spins 182, rounds 4566, OS waits 133
Spin rounds per wait: 22.98 RW-shared, 23.73 RW-excl, 25.09 RW-sx
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TRANSACTIONS
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Trx id counter 14810311
Purge done for trx's n:o < 14810311 undo n:o < 0 state: running
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284218235637976, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284218235633808, 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
1735142 OS file reads, 8050413 OS file writes, 4374850 OS fsyncs
5.78 reads/s, 16384 avg bytes/read, 22.00 writes/s, 11.00 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 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)
40.44 hash searches/s, 93.32 non-hash searches/s
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LOG
---
Log sequence number 9558133267
Log flushed up to   9558133231
Pages flushed up to 9558129737
Last checkpoint at  9558083811
0 pending log flushes, 0 pending chkp writes
2325694 log i/o's done, 5.89 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       739
Database pages     258
Old database pages 0
Modified db pages  10
Percent of dirty pages(LRU & free pages): 1.002
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 94, not young 2336
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1735035, created 68380, written 4847671
5.33 reads/s, 0.33 creates/s, 14.66 writes/s
Buffer pool hit rate 981 / 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[1003]:cur[6], 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=4648, Main thread ID=6648, state: sleeping
Number of rows inserted 343, updated 1619201, deleted 18, read 47208847
0.00 inserts/s, 4.44 updates/s, 0.00 deletes/s, 45.99 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 152924
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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