Saqtaýysh mehanızmdary
InnoDB
Supports transactions, row-level locking, and foreign keys
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InnoDB mártebesi
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2026-04-02 15:43:29 0x7ff4580f4700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 30 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 40 srv_active, 0 srv_shutdown, 721 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 73
OS WAIT ARRAY INFO: signal count 73
RW-shared spins 3, rounds 4, OS waits 1
RW-excl spins 5, rounds 150, OS waits 5
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.33 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9985
Purge done for trx's n:o < 9985 undo n:o < 0 state: running but idle
History list length 26
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422162951211624, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422162951210752, 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
1527 OS file reads, 1310 OS file writes, 432 OS fsyncs
0.13 reads/s, 12544 avg bytes/read, 1.40 writes/s, 1.07 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 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
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 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
2946.94 hash searches/s, 2304.72 non-hash searches/s
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LOG
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Log sequence number 51003459
Log buffer assigned up to 51003459
Log buffer completed up to 51003459
Log written up to 51003459
Log flushed up to 51003459
Added dirty pages up to 51003459
Pages flushed up to 51003459
Last checkpoint at 51003459
279 log i/o's done, 0.48 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 6643
Database pages 1530
Old database pages 553
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 359, not young 1260
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1384, created 416, written 781
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: 1530, unzip_LRU len: 0
I/O sum[21]: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=372, Main thread ID=140687468062464 , state=sleeping
Number of rows inserted 82072, updated 412, deleted 1, read 2471376
0.03 inserts/s, 0.10 updates/s, 0.00 deletes/s, 3867.90 reads/s
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END OF INNODB MONITOR OUTPUT
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