作者:tingel34 | 来源:互联网 | 2014-06-09 00:50
Mysql自带profiling性能分析工具1.showvariableslike'%profiling%';(查看profiling信息)www.2cto.com2.setprofiling1;(开启profiling)3.执行SQL查询例:selectgoods_namefrom..
Mysql自带profiling性能分析工具
1. show variables like '%profiling%';(查看profiling信息) www.2cto.com
2. set profiling=1;(开启profiling)
3. 执行SQL查询
例:select goods_name from ecs_goods where goods_id <5000;
show profiles;
4. show profile for query 4;
show profile 的格式如下:
SHOW PROFILE [type [, type] ... ]
[FOR QUERY n]
[LIMIT row_count [OFFSET offset]]
type:
ALL
| BLOCK IO
| CONTEXT SWITCHES
| CPU
| IPC
| MEMORY
| PAGE FAULTS
| SOURCE
| SWAPS