Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-03-18 09:22:09 0x22b8 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 29 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 35269 srv_active, 0 srv_shutdown, 314707 srv_idle
srv_master_thread log flush and writes: 349976
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 58918
OS WAIT ARRAY INFO: signal count 58148
RW-shared spins 33308, rounds 987569, OS waits 32850
RW-excl spins 147, rounds 3442, OS waits 110
RW-sx spins 10, rounds 317, OS waits 9
Spin rounds per wait: 29.65 RW-shared, 23.41 RW-excl, 31.70 RW-sx
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TRANSACTIONS
------------
Trx id counter 42806834
Purge done for trx's n:o < 42806834 undo n:o < 0 state: running but idle
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284289389019568, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284289389015400, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284289389007064, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284289389011232, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284289389002896, 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
131265 OS file reads, 471943 OS file writes, 290543 OS fsyncs
3.76 reads/s, 16384 avg bytes/read, 9.97 writes/s, 5.31 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 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
17.69 hash searches/s, 51.89 non-hash searches/s
---
LOG
---
Log sequence number 27249120745
Log flushed up to   27249120725
Pages flushed up to 27249114861
Last checkpoint at  27249112211
0 pending log flushes, 0 pending chkp writes
167032 log i/o's done, 3.24 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
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  11
Percent of dirty pages(LRU & free pages): 1.102
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 2765, not young 58437
0.00 youngs/s, 0.00 non-youngs/s
Pages read 131162, created 3258, written 258476
5.40 reads/s, 0.20 creates/s, 9.07 writes/s
Buffer pool hit rate 971 / 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[399]:cur[3], 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=6040, Main thread ID=6624, state: sleeping
Number of rows inserted 262, updated 58021, deleted 14, read 22919700
0.00 inserts/s, 1.66 updates/s, 0.00 deletes/s, 18.83 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 7070
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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