TPS – Transactions PerSecond（每秒传输的事物处理个数），即服务器每秒处理的事务数，如果是InnoDB会显示，没有InnoDB就不会显示。其他支持事务的存储引擎也可以。
方法一：利用mysql的系统统计表information_schema.global_status。其实多看看mysql自带的information_schema库下的表。基本能解决平时工作中的问题。
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）MyISAM引擎
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;
#方法二：利用mysql的全局状态值。
MySQL的QPS计算
show global status where Variable_name in(‘com_select’,’com_insert’,’com_delete’,’com_update’);
sleep(10)
show global status where Variable_name in(‘com_select’,’com_insert’,’com_delete’,’com_update’);
QPS：$stat_val{“Com_select”} +$stat_val{“Com_insert”} + $stat_val{“Com_update”} + $stat_val{“Com_delete”},
#方法二
#同理也是利用mysql的全局status值进行计算。
Questions = SHOW GLOBAL STATUS LIKE ‘Questions’;
Uptime = SHOW GLOBAL STATUS LIKE ‘Uptime’;
QPS=Questions/Uptime
TPS
Com_commit = SHOW GLOBAL STATUS LIKE ‘Com_commit’;
Com_rollback = SHOW GLOBAL STATUS LIKE ‘Com_rollback’;
Uptime = SHOW GLOBAL STATUS LIKE ‘Uptime’;
TPS=(Com_commit + Com_rollback)/Uptime
