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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2025-04-16 01:54:16 0x7f850f2e1700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 19 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 10 srv_active, 0 srv_shutdown, 497 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 8
OS WAIT ARRAY INFO: signal count 8
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 9780
Purge done for trx's n:o < 9775 undo n:o < 0 state: running but idle
History list length 56
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421685767913784, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421685767912912, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421685767912040, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421685767911168, 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
1337 OS file reads, 395 OS file writes, 142 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 2 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 29 buffer(s)
65956.84 hash searches/s, 341.56 non-hash searches/s
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LOG
---
Log sequence number 50972643
Log buffer assigned up to 50972643
Log buffer completed up to 50972643
Log written up to 50972643
Log flushed up to 50972643
Added dirty pages up to 50972643
Pages flushed up to 50972643
Last checkpoint at 50972643
82 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 574002
Buffer pool size 8192
Free buffers 6750
Database pages 1369
Old database pages 525
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 1222, created 147, written 254
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: 1369, 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=378, Main thread ID=140210283419392 , state=sleeping
Number of rows inserted 28, updated 332, deleted 0, read 17362924
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 66678.60 reads/s
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END OF INNODB MONITOR OUTPUT
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