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 13:36:09 0x68c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 60 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 471993 srv_active, 0 srv_shutdown, 31166 srv_idle
srv_master_thread log flush and writes: 503159
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 306970
OS WAIT ARRAY INFO: signal count 246510
RW-shared spins 124730, rounds 2865747, OS waits 92818
RW-excl spins 5552, rounds 130956, OS waits 3886
RW-sx spins 190, rounds 4806, OS waits 141
Spin rounds per wait: 22.98 RW-shared, 23.59 RW-excl, 25.29 RW-sx
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TRANSACTIONS
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Trx id counter 14916535
Purge done for trx's n:o < 14916535 undo n:o < 0 state: running
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284218235642144, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---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
1811007 OS file reads, 8305282 OS file writes, 4514482 OS fsyncs
5.47 reads/s, 16384 avg bytes/read, 18.98 writes/s, 10.10 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 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)
39.57 hash searches/s, 87.00 non-hash searches/s
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LOG
---
Log sequence number 9621277971
Log flushed up to   9621277951
Pages flushed up to 9621273019
Last checkpoint at  9621256970
0 pending log flushes, 0 pending chkp writes
2399842 log i/o's done, 5.37 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       738
Database pages     258
Old database pages 0
Modified db pages  11
Percent of dirty pages(LRU & free pages): 1.103
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 113, not young 2750
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1810900, created 70542, written 5000438
3.71 reads/s, 0.00 creates/s, 9.86 writes/s
Buffer pool hit rate 986 / 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[751]: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=4648, Main thread ID=6648, state: sleeping
Number of rows inserted 356, updated 1671497, deleted 18, read 49358698
0.00 inserts/s, 3.78 updates/s, 0.00 deletes/s, 36.05 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 157189
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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