스토리지 엔진
InnoDB
Supports transactions, row-level locking, and foreign keys
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환경설정값
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버퍼풀
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InnoDB 상태
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2026-03-05 20:26:48 0x7fa5eeee7700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 49 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 40 srv_active, 0 srv_shutdown, 619 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 89
OS WAIT ARRAY INFO: signal count 92
RW-shared spins 4, rounds 6, OS waits 2
RW-excl spins 5, rounds 152, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.50 RW-shared, 30.40 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10031
Purge done for trx's n:o < 10031 undo n:o < 0 state: running but idle
History list length 61
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421826968780240, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421826968779368, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421826968778496, 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
1399 OS file reads, 1098 OS file writes, 459 OS fsyncs
1.20 reads/s, 16384 avg bytes/read, 0.92 writes/s, 0.57 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)
2958.90 hash searches/s, 2258.48 non-hash searches/s
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LOG
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Log sequence number 51009592
Log buffer assigned up to 51009592
Log buffer completed up to 51009592
Log written up to 51009592
Log flushed up to 51009592
Added dirty pages up to 51009592
Pages flushed up to 51009592
Last checkpoint at 51009592
350 log i/o's done, 0.27 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 687375
Buffer pool size 8192
Free buffers 6769
Database pages 1403
Old database pages 532
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 428, not young 1653
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1258, created 166, written 627
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: 1403, unzip_LRU len: 0
I/O sum[79]: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=365, Main thread ID=140351483356928 , state=sleeping
Number of rows inserted 387, updated 413, deleted 0, read 1959016
2.76 inserts/s, 0.10 updates/s, 0.00 deletes/s, 3748.19 reads/s
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END OF INNODB MONITOR OUTPUT
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