QPS:每秒的查询数
TPS:每秒的事物量
QPS的计算方法
Questions = SHOW GLOBAL STATUS LIKE ‘Questions’;
Uptime = SHOW GLOBAL STATUS LIKE ‘Uptime’;
QPS=Questions/Uptime
例如:
mysql> show global status like ‘questions’;
+—————+———–+
| Variable_name | Value |
+—————+———–+
| Questions | 449106827 |
+—————+———–+
1 row in set (0.00 sec)
mysql> show global status like ‘uptime’;
+—————+——–+
| Variable_name | Value |
+—————+——–+
| Uptime | 238722 |
+—————+——–+
1 row in set (0.00 sec)
mysql> select 449106827/238722 as ‘QPS VALUE’ from dual;
+———–+
| QPS VALUE |
+———–+
| 1881.2963 |
+———–+
1 row in set (0.00 sec)
___________________________________________________________
TPS的计算方法
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
例如:
mysql> SHOW GLOBAL STATUS LIKE ‘Com_commit’;
+—————+———-+
| Variable_name | Value |
+—————+———-+
| Com_commit | 71050554 |
+—————+———-+
1 row in set (0.00 sec)
mysql> SHOW GLOBAL STATUS LIKE ‘Com_rollback’;
+—————+——–+
| Variable_name | Value |
+—————+——–+
| Com_rollback | 537161 |
+—————+——–+
1 row in set (0.00 sec)
mysql> SHOW GLOBAL STATUS LIKE ‘Uptime’;
+—————+——–+
| Variable_name | Value |
+—————+——–+
| Uptime | 238827 |
+—————+——–+
1 row in set (0.00 sec)
mysql> select (71050554+537161)/238827 as ‘TPS VALUE’ from dual;
+———–+
| TPS VALUE |
+———–+
| 299.7472 |
+———–+
1 row in set (0.00 sec)
