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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2024-11-16 16:24:19 0x7f153474c700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 23 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 94 srv_active, 0 srv_shutdown, 417 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 173
OS WAIT ARRAY INFO: signal count 174
RW-shared spins 18, rounds 30, OS waits 12
RW-excl spins 18, rounds 344, OS waits 10
RW-sx spins 4, rounds 96, OS waits 3
Spin rounds per wait: 1.67 RW-shared, 19.11 RW-excl, 24.00 RW-sx
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TRANSACTIONS
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Trx id counter 10332
Purge done for trx's n:o < 10328 undo n:o < 0 state: running but idle
History list length 11
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421205108480616, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421205108479744, 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
1640 OS file reads, 4333 OS file writes, 1461 OS fsyncs
11.48 reads/s, 14580 avg bytes/read, 15.48 writes/s, 4.13 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 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 3 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
779.31 hash searches/s, 263.12 non-hash searches/s
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LOG
---
Log sequence number 54560222
Log buffer assigned up to 54560222
Log buffer completed up to 54560222
Log written up to 54560222
Log flushed up to 54560222
Added dirty pages up to 54560222
Pages flushed up to 54560222
Last checkpoint at 54560222
1931 log i/o's done, 4.30 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 913863
Buffer pool size 8192
Free buffers 6393
Database pages 1782
Old database pages 646
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 562, not young 938
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1437, created 411, written 1976
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 998 / 1000, young-making rate 1 / 1000 not 9 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1782, unzip_LRU len: 0
I/O sum[451]: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=368, Main thread ID=139729624557312 , state=sleeping
Number of rows inserted 8883, updated 871, deleted 180, read 1046266
3.48 inserts/s, 2.48 updates/s, 0.00 deletes/s, 4909.31 reads/s
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END OF INNODB MONITOR OUTPUT
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