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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2024-09-27 04:16:52 0x7f921e055700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 46 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 12 srv_active, 0 srv_shutdown, 52 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 1, rounds 1, OS waits 0
RW-excl spins 1, 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 9770
Purge done for trx's n:o < 9763 undo n:o < 0 state: running but idle
History list length 60
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421741588769384, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421741588768512, 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
1210 OS file reads, 349 OS file writes, 126 OS fsyncs
1.09 reads/s, 16076 avg bytes/read, 2.57 writes/s, 1.61 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 5 buffer(s)
1385.19 hash searches/s, 626.73 non-hash searches/s
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LOG
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Log sequence number 50956400
Log buffer assigned up to 50956400
Log buffer completed up to 50956400
Log written up to 50956400
Log flushed up to 50956400
Added dirty pages up to 50956400
Pages flushed up to 50956400
Last checkpoint at 50956400
73 log i/o's done, 0.87 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 533373
Buffer pool size 8192
Free buffers 6920
Database pages 1261
Old database pages 446
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 92, not young 1429
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1119, created 151, written 217
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 4 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1261, unzip_LRU len: 0
I/O sum[147]: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=362, Main thread ID=140266104096512 , state=sleeping
Number of rows inserted 144, updated 327, deleted 0, read 136285
1.09 inserts/s, 0.22 updates/s, 0.00 deletes/s, 2382.19 reads/s
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END OF INNODB MONITOR OUTPUT
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