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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2025-05-31 15:31:26 0x7f526d66a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 38 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 3 srv_active, 0 srv_shutdown, 34 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 12
OS WAIT ARRAY INFO: signal count 12
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 9766
Purge done for trx's n:o < 9766 undo n:o < 0 state: running but idle
History list length 58
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421468035967592, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421468035966720, 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
1168 OS file reads, 267 OS file writes, 66 OS fsyncs
29.95 reads/s, 20603 avg bytes/read, 6.85 writes/s, 1.69 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 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 0 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 6 buffer(s)
570.46 hash searches/s, 345.49 non-hash searches/s
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LOG
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Log sequence number 50953189
Log buffer assigned up to 50953189
Log buffer completed up to 50953189
Log written up to 50953189
Log flushed up to 50953189
Added dirty pages up to 50953189
Pages flushed up to 50953189
Last checkpoint at 50953189
43 log i/o's done, 1.13 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 481458
Buffer pool size 8192
Free buffers 6967
Database pages 1213
Old database pages 467
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1071, created 142, written 185
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 988 / 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: 1213, unzip_LRU len: 0
I/O sum[0]: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=363, Main thread ID=139992552888064 , state=sleeping
Number of rows inserted 3, updated 325, deleted 0, read 41574
0.08 inserts/s, 8.55 updates/s, 0.00 deletes/s, 1094.02 reads/s
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END OF INNODB MONITOR OUTPUT
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