MySQL中MyISAM引擎和Heap引擎执行速度性能测试

发布: 2009-3-18 09:41 | 作者: 不详 | 来源: 测试时代采编 | 查看: 79次 | 进入软件测试论坛讨论

`summary` varchar(255) default '',

KEY `id` (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=gbk;

插入数据

说明：每次都是空表插入数据

插入10000 Record

Heap engine insert 10000 record used time: 3.5008587837219

MyISAM engine insert 10000 record used time: 4.5881390571594

50000 Record

Heap engine insert 50000 record used time: 19.895354986191

MyISAM engine insert 50000 record used time: 33.866044998169

100000 Record

Heap engine insert 100000 record used time: 36.200875997543

MyISAM engine insert 100000 record used time: 68.34194111824

200000 Record

Heap engine insert 200000 record used time: 68.00207901001

MyISAM engine insert 200000 record used time: 125.26263713837

查询数据

表里分表有：200000条记录，两个表数据一致

直接select，10000次，每次取100条记录

Heap engine select 10000 times, 100 record used time: 12.122506141663

MyISAM engine select 10000 times, 100 record used time: 19.512896060944

直接select，1000次，每次取10000条记录

Heap engine select 1000 times, 10000 record used time: 111.54126811028

MyISAM engine select 1000 record used time: 116.79438710213

增加where条件，1000次，每次取10000条记录

Heap engine select 1000 times, 10000 record used time: 111.52102303505

MyISAM engine select 1000 times, 10000 record used time: 117.68481087685

where条件，10000次，每次从1000条起，取1000条记录

Heap engine select 10000 times, 1000 record used time: 124.28988695145

MyISAM engine select 10000 times, 1000 record used time: 139.82107305527

where条件增加like，10000次，每次从1000条起，取1000条记录

Heap engine select 10000 times, 1000 record used time: 145.43780493736

MyISAM engine select 10000 times, 1000 record used time: 163.56296992302

where条件增加索引，10000次，每次从1000条起，取1000条记录

-- 建立索引 (在SQLyob下执行)

ALTER TABLE tbl_heap ADD INDEX idx_name (name);

ALTER TABLE tbl_isam ADD INDEX idx_name (name);

Heap engine alter table add index used time: 2.078

MyISAM engine alter table add index used time: 13.516

Heap engine select 10000 times, 1000 record used time: 153.48922395706

MyISAM engine select 10000 times, 1000 record used time: 239.86818814278

PS：不合适的索引还不如不要。