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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2026-01-08 12:27:56 0x7fd5875ca700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 58 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 29 srv_active, 0 srv_shutdown, 699 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 44
OS WAIT ARRAY INFO: signal count 42
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 2, rounds 60, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9886
Purge done for trx's n:o < 9879 undo n:o < 0 state: running but idle
History list length 4
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422030635584104, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422030635583232, 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
1416 OS file reads, 773 OS file writes, 313 OS fsyncs
0.07 reads/s, 12544 avg bytes/read, 0.31 writes/s, 0.21 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 0 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
259.44 hash searches/s, 89.93 non-hash searches/s
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LOG
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Log sequence number 50981004
Log buffer assigned up to 50981004
Log buffer completed up to 50981004
Log written up to 50981004
Log flushed up to 50981004
Added dirty pages up to 50981004
Pages flushed up to 50981004
Last checkpoint at 50981004
179 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 592401
Buffer pool size 8192
Free buffers 6745
Database pages 1430
Old database pages 507
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 73, not young 1034
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1287, created 155, written 491
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: 1430, unzip_LRU len: 0
I/O sum[10]: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=373, Main thread ID=140555150366464 , state=sleeping
Number of rows inserted 47, updated 368, deleted 0, read 557979
0.09 inserts/s, 0.00 updates/s, 0.00 deletes/s, 437.51 reads/s
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END OF INNODB MONITOR OUTPUT
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