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发布于 20 Feb 2015 05:37
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mysql> show engine innodb status;

150220 13:37:23 INNODB MONITOR OUTPUT

Per second averages calculated from the last 10 seconds
- - - - - - - - - -
SEMAPHORES
- - - - - - - - - -
OS WAIT ARRAY INFO: reservation count 4, signal count 4
Mutex spin waits 0, rounds 20, OS waits 1
RW-shared spins 4, OS waits 2; RW-excl spins 1, OS waits 1
- - - - - - - - - - - -
TRANSACTIONS
- - - - - - - - - - - -
Trx id counter 0 1280
Purge done for trx's n:o < 0 0 undo n:o < 0 0
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
- - -TRANSACTION 0 0, not started, OS thread id 7120
MySQL thread id 1, query id 5 localhost 127.0.0.1 root
show engine innodb status
- - - - - - - -
FILE I/O
- - - - - - - -
I/O thread 0 state: wait Windows aio (insert buffer thread)
I/O thread 1 state: wait Windows aio (log thread)
I/O thread 2 state: wait Windows aio (read thread)
I/O thread 3 state: wait Windows aio (write thread)
Pending normal aio reads: 0, aio writes: 0,
ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0
Pending flushes (fsync) log: 0; buffer pool: 0
29 OS file reads, 3 OS file writes, 3 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
INSERT BUFFER AND ADAPTIVE HASH INDEX
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Ibuf: size 1, free list len 0, seg size 2,
0 inserts, 0 merged recs, 0 merges
Hash table size 34679, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
- - -
LOG
- - -
Log sequence number 0 44233
Log flushed up to 0 44233
Last checkpoint at 0 44233
0 pending log writes, 0 pending chkp writes
8 log i/o's done, 0.00 log i/o's/second
- - - - - - - - - - - - - - - - - - - - - -
BUFFER POOL AND MEMORY
- - - - - - - - - - - - - - - - - - - - - -
Total memory allocated 14775224; in additional pool allocated 858880
Dictionary memory allocated 20888
Buffer pool size 512
Free buffers 493
Database pages 19
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages read 19, created 0, written 0
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
- - - - - - - - - - - - - -
ROW OPERATIONS
- - - - - - - - - - - - - -
0 queries inside InnoDB, 0 queries in queue
1 read views open inside InnoDB
Main thread id 8840, state: waiting for server activity
Number of rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
END OF INNODB MONITOR OUTPUT

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