Mysql自带profiling性能分析工具
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![]() | Mysql自带profiling性能分析工具 1. show variables like '%profiling%';(查看profiling信息) 图片:20121110113606224.jpg ![]() 2. set profiling=1;(开启profiling) 图片:20121110113606673.jpg ![]() 3. 执行SQL查询 例:select goods_name from ecs_goods where goods_id <5000; show profiles; 图片:20121110113607190.jpg ![]() 4. show profile for query 4; 图片:20121110113607499.jpg ![]() show profile 的格式如下: SHOW PROFILE [type [, type] ... ] [FOR QUERYn] [LIMITrow_count [OFFSET offset]] type: ALL | BLOCK IO | CONTEXT SWITCHES | cpu | IPC | MEMORY | PAGE FAULTS | SOURCE | SWAPS | |
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