标签：mysql
TPS - Transactions Per Second（每秒传输的事物处理个数），这是指服务器每秒处理的事务数，支持事务的存储引擎如InnoDB等特有的一个性能指标。
计算方法：
TPS = (COM_COMMIT + COM_ROLLBACK)/UPTIME
use information_schema; select VARIABLE_VALUE into @num_com from GLOBAL_STATUS where VARIABLE_NAME ='COM_COMMIT'; select VARIABLE_VALUE into @num_roll from GLOBAL_STATUS where VARIABLE_NAME ='COM_ROLLBACK'; select VARIABLE_VALUE into @uptime from GLOBAL_STATUS where VARIABLE_NAME ='UPTIME'; select (@num_com+@num_roll)/@uptime;
QPS - Queries Per Second（每秒查询处理量）同时适用与InnoDB和MyISAM 引擎
计算方法：
QPS=QUESTIONS/UPTIME
use information_schema; select VARIABLE_VALUE into @num_queries from GLOBAL_STATUS where VARIABLE_NAME ='QUESTIONS'; select VARIABLE_VALUE into @uptime from GLOBAL_STATUS where VARIABLE_NAME ='UPTIME'; select @num_queries/@uptime;
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标签：mysql
原文地址：http://blog.csdn.net/jeffreynicole/article/details/47451043
