Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-06-10 05:18:54 0x9b0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 63 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 19514 srv_active, 0 srv_shutdown, 805213 srv_idle
srv_master_thread log flush and writes: 824727
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SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 128149
OS WAIT ARRAY INFO: signal count 45989
RW-shared spins 15716, rounds 469088, OS waits 15270
RW-excl spins 817, rounds 41710, OS waits 1291
RW-sx spins 6, rounds 44, OS waits 1
Spin rounds per wait: 29.85 RW-shared, 51.05 RW-excl, 7.33 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 379475
Purge done for trx's n:o < 379475 undo n:o < 0 state: running
History list length 4
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283064779743592, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779731088, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779768600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779764432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779760264, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779756096, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779739424, not started
mysql tables in use 1, locked 0
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779735256, 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
109431 OS file reads, 208962 OS file writes, 136028 OS fsyncs
3.19 reads/s, 16384 avg bytes/read, 8.27 writes/s, 3.29 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 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)
Hash table size 4441, node heap has 1 buffer(s)
7.65 hash searches/s, 18.13 non-hash searches/s
---
LOG
---
Log sequence number 231131724
Log flushed up to   231131724
Pages flushed up to 231131724
Last checkpoint at  231104990
0 pending log flushes, 0 pending chkp writes
71937 log i/o's done, 2.05 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1795368
Buffer pool size   1003
Free buffers       739
Database pages     256
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 1071, not young 140193
0.00 youngs/s, 0.00 non-youngs/s
Pages read 102653, created 1290, written 115301
3.19 reads/s, 0.03 creates/s, 5.75 writes/s
Buffer pool hit rate 955 / 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: 256, unzip_LRU len: 0
I/O sum[563]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=4588, Main thread ID=8424, state: sleeping
Number of rows inserted 275, updated 22811, deleted 174, read 39900828
0.00 inserts/s, 1.41 updates/s, 0.00 deletes/s, 8.29 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 761901
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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