Mysql自带profiling性能分析工具

1. show variables like '%profiling%'; (查看profiling信息)

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