关于MySQL的TPS和QPS

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;

show global status where variable_name in('com_select','com_insert','com_delete','com_update');

show global status where variable_name in('com_commit','com_rollback');

show status like 'uptime';
http://blog.csdn.net/JeffreyNicole/article/details/47451043