ストレージエンジン

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ 変数 | バッファプール | InnoDB ステータス ]

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2025-11-27 14:31:13 0x7f71101d5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 18 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 1050 srv_active, 0 srv_shutdown, 1604 srv_idle
srv_master_thread log flush and writes: 2654
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 3147
OS WAIT ARRAY INFO: signal count 2900
RW-shared spins 0, rounds 1807, OS waits 897
RW-excl spins 0, rounds 270, OS waits 9
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1807.00 RW-shared, 270.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 41817
Purge done for trx's n:o < 41817 undo n:o < 0 state: running but idle
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421598773838328, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421598773834072, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421598773829816, 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
862 OS file reads, 14592 OS file writes, 7418 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 20.28 writes/s, 7.44 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 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 9 buffer(s)
Hash table size 69257, node heap has 2 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 3 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
23.00 hash searches/s, 8.22 non-hash searches/s
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LOG
---
Log sequence number 12093638
Log flushed up to   12093517
Pages flushed up to 12074644
Last checkpoint at  12074644
0 pending log flushes, 0 pending chkp writes
4986 log i/o's done, 5.56 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15124
Database pages     835
Old database pages 327
Modified db pages  34
Percent of dirty pages(LRU & free pages): 0.213
Max dirty pages percent: 75.000
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 703, created 132, written 8769
0.00 reads/s, 0.06 creates/s, 13.83 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: 835, 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=905, Main thread ID=140123031201536, state: sleeping
Number of rows inserted 1, updated 2123, deleted 0, read 654292
0.00 inserts/s, 4.89 updates/s, 0.00 deletes/s, 13.17 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 3
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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