Moteurs de stockage
InnoDB
Supports transactions, row-level locking, and foreign keys
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Variables
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Mémoire tampon
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État InnoDB
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2025-06-29 08:04:28 0x7f0ca2307700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 36 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 14 srv_active, 0 srv_shutdown, 205 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 62
OS WAIT ARRAY INFO: signal count 60
RW-shared spins 3, rounds 6, OS waits 3
RW-excl spins 1, rounds 0, OS waits 0
RW-sx spins 1, rounds 6, OS waits 0
Spin rounds per wait: 2.00 RW-shared, 0.00 RW-excl, 6.00 RW-sx
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TRANSACTIONS
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Trx id counter 9895
Purge done for trx's n:o < 9895 undo n:o < 0 state: running but idle
History list length 4
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421167796791912, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421167796791040, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
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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
1306 OS file reads, 886 OS file writes, 260 OS fsyncs
0.33 reads/s, 13824 avg bytes/read, 9.92 writes/s, 1.94 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 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
343.18 hash searches/s, 120.61 non-hash searches/s
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LOG
---
Log sequence number 51051778
Log buffer assigned up to 51051778
Log buffer completed up to 51051778
Log written up to 51051778
Log flushed up to 51051778
Added dirty pages up to 51051778
Pages flushed up to 51051778
Last checkpoint at 51051778
248 log i/o's done, 1.00 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 137363456
Dictionary memory allocated 625644
Buffer pool size 8192
Free buffers 6819
Database pages 1360
Old database pages 521
Modified db pages 0
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 1201, created 159, written 568
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: 1360, unzip_LRU len: 0
I/O sum[0]:cur[6], 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=369, Main thread ID=139692312028928 , state=sleeping
Number of rows inserted 108, updated 443, deleted 0, read 233485
0.03 inserts/s, 0.17 updates/s, 0.00 deletes/s, 898.61 reads/s
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END OF INNODB MONITOR OUTPUT
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