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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2024-09-29 01:23:05 0x7ffb0807c700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 44 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 40 srv_active, 0 srv_shutdown, 396 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 114
OS WAIT ARRAY INFO: signal count 116
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 4, rounds 120, OS waits 4
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10232
Purge done for trx's n:o < 10232 undo n:o < 0 state: running but idle
History list length 39
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422191672835536, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422191672834664, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422191672833792, 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
1705 OS file reads, 1506 OS file writes, 593 OS fsyncs
0.95 reads/s, 16384 avg bytes/read, 0.41 writes/s, 0.32 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 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 30 buffer(s)
3376.76 hash searches/s, 610.40 non-hash searches/s
---
LOG
---
Log sequence number 51046563
Log buffer assigned up to 51046563
Log buffer completed up to 51046563
Log written up to 51046563
Log flushed up to 51046563
Added dirty pages up to 51046563
Pages flushed up to 51046563
Last checkpoint at 51046563
506 log i/o's done, 0.14 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 796431
Buffer pool size 8192
Free buffers 6462
Database pages 1658
Old database pages 592
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 596, not young 82267
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1510, created 154, written 878
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 174 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1658, unzip_LRU len: 0
I/O sum[50]: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=370, Main thread ID=140716187768576 , state=sleeping
Number of rows inserted 173, updated 475, deleted 0, read 902450
0.00 inserts/s, 0.05 updates/s, 0.00 deletes/s, 4288.72 reads/s
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END OF INNODB MONITOR OUTPUT
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