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 + C来源gaodai#ma#com搞@代~码$网OM_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;