Saqtaýysh mehanızmdary
InnoDB
Supports transactions, row-level locking, and foreign keys
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InnoDB mártebesi
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2026-04-02 14:09:03 0x7f24e40cd700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 43 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 37 srv_active, 0 srv_shutdown, 458 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 90
OS WAIT ARRAY INFO: signal count 90
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 3, rounds 91, OS waits 4
RW-sx spins 1, rounds 19, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.33 RW-excl, 19.00 RW-sx
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TRANSACTIONS
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Trx id counter 9981
Purge done for trx's n:o < 9981 undo n:o < 0 state: running but idle
History list length 26
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421271970835048, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421271970834176, 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
1538 OS file reads, 949 OS file writes, 368 OS fsyncs
0.12 reads/s, 13312 avg bytes/read, 0.42 writes/s, 0.35 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 8 buffer(s)
2084.04 hash searches/s, 1542.17 non-hash searches/s
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LOG
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Log sequence number 50997749
Log buffer assigned up to 50997749
Log buffer completed up to 50997749
Log written up to 50997749
Log flushed up to 50997749
Added dirty pages up to 50997749
Pages flushed up to 50997749
Last checkpoint at 50997749
242 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 831191
Buffer pool size 8192
Free buffers 6633
Database pages 1539
Old database pages 550
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 281, not young 378
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1393, created 159, written 597
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: 1539, unzip_LRU len: 0
I/O sum[11]: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=371, Main thread ID=139796484658944 , state=sleeping
Number of rows inserted 1765, updated 409, deleted 0, read 1481686
0.00 inserts/s, 0.05 updates/s, 0.00 deletes/s, 2641.54 reads/s
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END OF INNODB MONITOR OUTPUT
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