ストレージエンジン
InnoDB
Supports transactions, row-level locking, and foreign keys
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変数
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バッファプール
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InnoDB ステータス
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2025-07-30 11:46:10 0x7f7ee0063700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 22 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 6 srv_active, 0 srv_shutdown, 15 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 7
OS WAIT ARRAY INFO: signal count 7
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9763
Purge done for trx's n:o < 9762 undo n:o < 0 state: running but idle
History list length 58
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421658035807392, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421658035805648, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421658035804776, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421658035803904, 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
1163 OS file reads, 278 OS file writes, 80 OS fsyncs
50.56 reads/s, 20621 avg bytes/read, 12.09 writes/s, 3.48 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 0 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 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
1076.50 hash searches/s, 758.69 non-hash searches/s
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LOG
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Log sequence number 50952913
Log buffer assigned up to 50952913
Log buffer completed up to 50952913
Log written up to 50952913
Log flushed up to 50952913
Added dirty pages up to 50952913
Pages flushed up to 50952913
Last checkpoint at 50952913
44 log i/o's done, 1.83 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 519997
Buffer pool size 8192
Free buffers 6974
Database pages 1208
Old database pages 436
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 39, not young 66
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1066, created 145, written 191
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 989 / 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: 1208, unzip_LRU len: 0
I/O sum[30]: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=370, Main thread ID=140182550673152 , state=sleeping
Number of rows inserted 48, updated 325, deleted 0, read 40067
2.18 inserts/s, 14.77 updates/s, 0.00 deletes/s, 1821.14 reads/s
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END OF INNODB MONITOR OUTPUT
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