Механізми зберігання
InnoDB
Supports transactions, row-level locking, and foreign keys
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Змінні
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Буферний пул
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Статус InnoDB
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2026-03-04 13:17:34 0x7effb4dcc700 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: 10 srv_active, 0 srv_shutdown, 95 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 28
OS WAIT ARRAY INFO: signal count 49
RW-shared spins 13, rounds 13, OS waits 0
RW-excl spins 4, rounds 41, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 10.25 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9825
Purge done for trx's n:o < 9818 undo n:o < 0 state: running but idle
History list length 86
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421112276597352, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421112276596480, 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
1400 OS file reads, 448 OS file writes, 162 OS fsyncs
2.66 reads/s, 15596 avg bytes/read, 0.98 writes/s, 0.80 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 0 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 29 buffer(s)
13762.85 hash searches/s, 10487.53 non-hash searches/s
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LOG
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Log sequence number 50966439
Log buffer assigned up to 50966439
Log buffer completed up to 50966439
Log written up to 50966439
Log flushed up to 50966439
Added dirty pages up to 50966439
Pages flushed up to 50966439
Last checkpoint at 50966439
119 log i/o's done, 0.31 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 821972
Buffer pool size 8192
Free buffers 6682
Database pages 1440
Old database pages 551
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 1297, created 143, written 271
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: 1440, 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=366, Main thread ID=139636790736640 , state=sleeping
Number of rows inserted 6, updated 353, deleted 0, read 2167111
0.05 inserts/s, 0.02 updates/s, 0.00 deletes/s, 16235.04 reads/s
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END OF INNODB MONITOR OUTPUT
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