Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

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2026-01-27 15:16:07 0x7fdbd0505700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 52 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 2077 srv_active, 0 srv_shutdown, 1447 srv_idle
srv_master_thread log flush and writes: 3524
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 5740
OS WAIT ARRAY INFO: signal count 4540
RW-shared spins 0, rounds 2391, OS waits 1184
RW-excl spins 0, rounds 690, OS waits 23
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2391.00 RW-shared, 690.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 44994
Purge done for trx's n:o < 44994 undo n:o < 0 state: running but idle
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422057052382008, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422057052386264, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422057052377752, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422057052373496, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422057052369240, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422057052364984, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (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
845 OS file reads, 25355 OS file writes, 13237 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 1.83 writes/s, 1.83 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 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 9 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 3 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
6.75 hash searches/s, 2.48 non-hash searches/s
---
LOG
---
Log sequence number 14231707
Log flushed up to   14231586
Pages flushed up to 14113043
Last checkpoint at  14113034
0 pending log flushes, 0 pending chkp writes
8231 log i/o's done, 1.83 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15143
Database pages     818
Old database pages 321
Modified db pages  183
Percent of dirty pages(LRU & free pages): 1.146
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 686, created 132, written 15366
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 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: 818, unzip_LRU len: 0
I/O sum[0]:cur[0], 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=903, Main thread ID=140581300848384, state: sleeping
Number of rows inserted 1, updated 3715, deleted 0, read 254644
0.00 inserts/s, 1.73 updates/s, 0.00 deletes/s, 3.88 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 650
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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