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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2025-04-15 20:12:26 0x7f1390148700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 27 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 54 srv_active, 0 srv_shutdown, 643 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 102
OS WAIT ARRAY INFO: signal count 102
RW-shared spins 1, rounds 1, 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: 1.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10040
Purge done for trx's n:o < 10033 undo n:o < 0 state: running but idle
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421196992535144, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421196992534272, 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
1508 OS file reads, 1499 OS file writes, 586 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 9 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
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 31 buffer(s)
62652.61 hash searches/s, 271.10 non-hash searches/s
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LOG
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Log sequence number 51051811
Log buffer assigned up to 51051811
Log buffer completed up to 51051811
Log written up to 51051811
Log flushed up to 51051811
Added dirty pages up to 51051811
Pages flushed up to 51051811
Last checkpoint at 51051811
398 log i/o's done, 0.00 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 730076
Buffer pool size 8192
Free buffers 6611
Database pages 1507
Old database pages 559
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 645, not young 3408
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1351, created 347, written 863
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: 1507, unzip_LRU len: 0
I/O sum[1]: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=361, Main thread ID=139721507272448 , state=sleeping
Number of rows inserted 33096, updated 449, deleted 0, read 7236636
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 63113.55 reads/s
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END OF INNODB MONITOR OUTPUT
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