mysql> show innodb status \g
+——–+——+————————————————-+
| Type | Name | Status
+——–+——+————————————————-+
| InnoDB | |
=====================================
090206 9:00:16 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 56 seconds
———-
SEMAPHORES
———-
OS WAIT ARRAY INFO: reservation count 6, signal count 6
Mutex spin waits 0, rounds 340, OS waits 0
RW-shared spins 13, OS waits 6; RW-excl spins 1, OS waits 0
————
TRANSACTIONS
————
Trx id counter 0 1817
Purge done for trx’s n:o < 0 1814 undo n:o < 0 0
History list length 4
Total number of lock structs in row lock hash table 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 0 0, not started, process no 31575, OS thread id 8362912
MySQL thread id 1998, query id 98281 localhost root
show innodb status
--------
FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (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
28 OS file reads, 37 OS file writes, 28 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, used cells 0, node heap has 1 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 0 74422
Log flushed up to 0 74422
Last checkpoint at 0 74422
0 pending log writes, 0 pending chkp writes
23 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total memory allocated 17444756; in additional pool allocated 876160
Dictionary memory allocated 28616
Buffer pool size 512
Free buffers 488
Database pages 23
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages read 22, created 1, written 21
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 process no. 31575, id 113028000, state: waiting for server activity
Number of rows inserted 3, updated 1, deleted 0, read 32
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
|
+--------+------+------------------------------------------------+
1 row in set, 1 warning (0.00 sec)
mysql>
mysql> show engine innodb status \g
+——–+——+————————————————+
| Type | Name | Status
+——–+——+————————————————+
| InnoDB | |
=====================================
090206 9:01:09 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 3 seconds
———-
SEMAPHORES
———-
OS WAIT ARRAY INFO: reservation count 6, signal count 6
Mutex spin waits 0, rounds 340, OS waits 0
RW-shared spins 13, OS waits 6; RW-excl spins 1, OS waits 0
————
TRANSACTIONS
————
Trx id counter 0 1817
Purge done for trx’s n:o < 0 1814 undo n:o < 0 0
History list length 4
Total number of lock structs in row lock hash table 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 0 0, not started, process no 31575, OS thread id 8362912
MySQL thread id 1998, query id 98284 localhost root
show engine innodb status
--------
FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (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
28 OS file reads, 37 OS file writes, 28 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, used cells 0, node heap has 1 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 0 74422
Log flushed up to 0 74422
Last checkpoint at 0 74422
0 pending log writes, 0 pending chkp writes
23 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total memory allocated 17444756; in additional pool allocated 876160
Dictionary memory allocated 28616
Buffer pool size 512
Free buffers 488
Database pages 23
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages read 22, created 1, written 21
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 process no. 31575, id 113028000, state: waiting for server activity
Number of rows inserted 3, updated 1, deleted 0, read 32
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
|
+--------+------+--------------------------------------------------+
1 row in set (0.01 sec)
mysql>