Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-05-03 00:17:15 0xba0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 49 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 59337 srv_active, 0 srv_shutdown, 80703 srv_idle
srv_master_thread log flush and writes: 140040
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 102018
OS WAIT ARRAY INFO: signal count 100690
RW-shared spins 57900, rounds 1720278, OS waits 57272
RW-excl spins 140, rounds 3638, OS waits 114
RW-sx spins 13, rounds 390, OS waits 13
Spin rounds per wait: 29.71 RW-shared, 25.99 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 51413067
Purge done for trx's n:o < 51413067 undo n:o < 0 state: running but idle
History list length 6
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283161497809256, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283161497800920, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283161497805088, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283161497796752, 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
175449 OS file reads, 784733 OS file writes, 488894 OS fsyncs
13.55 reads/s, 16384 avg bytes/read, 17.88 writes/s, 7.41 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 0 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)
20.00 hash searches/s, 69.12 non-hash searches/s
---
LOG
---
Log sequence number 32959035758
Log flushed up to   32959035738
Pages flushed up to 32959033102
Last checkpoint at  32959026060
0 pending log flushes, 0 pending chkp writes
282764 log i/o's done, 5.02 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       772
Database pages     227
Old database pages 0
Modified db pages  5
Percent of dirty pages(LRU & free pages): 0.500
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1657, not young 82939
0.00 youngs/s, 0.00 non-youngs/s
Pages read 175343, created 4767, written 424584
13.55 reads/s, 0.20 creates/s, 11.86 writes/s
Buffer pool hit rate 953 / 1000, young-making rate 0 / 1000 not 0 / 1000
Pages read ahead 1.96/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 227, unzip_LRU len: 0
I/O sum[1203]: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=6184, Main thread ID=5784, state: sleeping
Number of rows inserted 69, updated 95536, deleted 3, read 12065272
0.00 inserts/s, 3.96 updates/s, 0.00 deletes/s, 593.52 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 1828
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 3.55 reads/s
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END OF INNODB MONITOR OUTPUT
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