Mysql自带profiling性能分析工具

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