儲存引擎
InnoDB
Supports transactions, row-level locking, and foreign keys
[
變數
|
緩衝池
|
InnoDB 狀態
]
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2024-09-29 01:22:21 0x7ffae946a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 39 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 38 srv_active, 0 srv_shutdown, 353 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 114
OS WAIT ARRAY INFO: signal count 114
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 4, rounds 120, OS waits 4
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10228
Purge done for trx's n:o < 10227 undo n:o < 0 state: running but idle
History list length 37
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422191672834664, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422191672833792, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
1663 OS file reads, 1488 OS file writes, 579 OS fsyncs
0.72 reads/s, 15835 avg bytes/read, 0.56 writes/s, 0.44 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 1 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)
1599.70 hash searches/s, 741.24 non-hash searches/s
---
LOG
---
Log sequence number 51045855
Log buffer assigned up to 51045855
Log buffer completed up to 51045855
Log written up to 51045855
Log flushed up to 51045855
Added dirty pages up to 51045855
Pages flushed up to 51045855
Last checkpoint at 51045855
500 log i/o's done, 0.20 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 796431
Buffer pool size 8192
Free buffers 6560
Database pages 1616
Old database pages 606
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 489, not young 1043
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1468, created 154, written 870
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: 1616, unzip_LRU len: 0
I/O sum[42]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=370, Main thread ID=140716187768576 , state=sleeping
Number of rows inserted 173, updated 473, deleted 0, read 713742
0.00 inserts/s, 0.08 updates/s, 0.00 deletes/s, 2206.28 reads/s
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END OF INNODB MONITOR OUTPUT
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