存储引擎

InnoDB

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

[ 变量 | 缓冲池 | InnoDB 状态 ]

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2026-06-07 07:46:43 0x2164 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 23 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 6561 srv_active, 0 srv_shutdown, 1841128 srv_idle
srv_master_thread log flush and writes: 1847689
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 115008
OS WAIT ARRAY INFO: signal count 45236
RW-shared spins 8806, rounds 263850, OS waits 8770
RW-excl spins 16, rounds 408, OS waits 11
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 29.96 RW-shared, 25.50 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 214977
Purge done for trx's n:o < 214975 undo n:o < 0 state: running
History list length 13
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283279133614512, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283279133610344, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283279133606176, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283279133602008, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283279133597840, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
14955 OS file reads, 76543 OS file writes, 53082 OS fsyncs
0.30 reads/s, 16384 avg bytes/read, 0.22 writes/s, 0.22 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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
1.61 hash searches/s, 3.43 non-hash searches/s
---
LOG
---
Log sequence number 128047268
Log flushed up to   128047268
Pages flushed up to 128041652
Last checkpoint at  128041643
0 pending log flushes, 0 pending chkp writes
32020 log i/o's done, 0.22 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 185296
Buffer pool size   1003
Free buffers       735
Database pages     263
Old database pages 0
Modified db pages  11
Percent of dirty pages(LRU & free pages): 1.101
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 14878, created 552, written 37167
0.30 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 966 / 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: 263, unzip_LRU len: 0
I/O sum[160]:cur[1], 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=3280, Main thread ID=4180, state: sleeping
Number of rows inserted 0, updated 7789, deleted 0, read 73967
0.00 inserts/s, 0.22 updates/s, 0.00 deletes/s, 2.09 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 13118
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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