存储引擎
InnoDB
Supports transactions, row-level locking, and foreign keys
[
变量
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缓冲池
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InnoDB 状态
]
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2025-05-19 05:10:06 0x7fdd30088700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 10 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 68 srv_active, 0 srv_shutdown, 490 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 130
OS WAIT ARRAY INFO: signal count 129
RW-shared spins 6, rounds 11, OS waits 5
RW-excl spins 9, rounds 216, OS waits 7
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 1.83 RW-shared, 24.00 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 10185
Purge done for trx's n:o < 10185 undo n:o < 0 state: running but idle
History list length 23
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422062970804840, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422062970803968, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
--------
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
1657 OS file reads, 2275 OS file writes, 867 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 1 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 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
3749.13 hash searches/s, 961.00 non-hash searches/s
---
LOG
---
Log sequence number 51225759
Log buffer assigned up to 51225759
Log buffer completed up to 51225759
Log written up to 51225759
Log flushed up to 51225759
Added dirty pages up to 51225759
Pages flushed up to 51225759
Last checkpoint at 51225759
687 log i/o's done, 0.00 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 916791
Buffer pool size 8192
Free buffers 6527
Database pages 1646
Old database pages 589
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 778, not young 4709
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1452, created 260, written 1346
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: 1646, unzip_LRU len: 0
I/O sum[66]: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=367, Main thread ID=140587485558528 , state=sleeping
Number of rows inserted 1139, updated 574, deleted 67, read 1428906
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 4514.25 reads/s
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END OF INNODB MONITOR OUTPUT
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