mysql的innodb和myisam的dml效能對比

hotdog04發表於2013-07-03
MySql
C:\Users\ibm>mysql -uroot -proot
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 22
Server version: 5.5.17 MySQL Community Server (GPL)
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use test
通過下面的對比，發現myisam的dml效率高於innodb，但是在
併發環境下，myisam的表鎖導致其dml效能差於innodb。
insert into test_innodb select * from data;
(2621440 row(s) affected)
Execution Time : 00:01:46:392
Transfer Time  : 00:00:00:000
Total Time     : 00:01:46:392
insert into test_myisam select * from data;
(2621440 row(s) affected)
Execution Time : 00:00:18:985
Transfer Time  : 00:00:00:000
Total Time     : 00:00:18:985

 

update test_innodb set c='100';
(2621440 row(s) affected)
Execution Time : 00:02:13:475
Transfer Time  : 00:00:00:000
Total Time     : 00:02:13:475
update test_myisam set c='300';
(2621440 row(s) affected)
Execution Time : 00:00:48:626
Transfer Time  : 00:00:00:000
Total Time     : 00:00:48:626
delete from test_innodb;
(2621440 row(s) affected)
Execution Time : 00:01:13:476
Transfer Time  : 00:00:00:000
Total Time     : 00:01:13:476
delete from test_myisam
(2621440 row(s) affected)
Execution Time : 00:00:00:124
Transfer Time  : 00:00:00:000
Total Time     : 00:00:00:124

 

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