MySQL中MyISAM引擎和Heap引擎执行速度性能测试(1)

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作者: heiyeluren 出处:
Csdn博客
　

阅读提示：本文对MySQL中MyISAM引擎和Heap引擎执行速度进行了性能测试，给出了详细的步骤和源代码，供大家参考！
【引自
heiyeluren
的博客】

测试环境
CPU：Intel Pentium4 2.66GHz
Memory：1GB
Disk：73GB/SCSI
OS：FreeBSD 4.11
PHP：PHP 5.2.1
MySQL：MySQL 4.1.23b
前期工作
my.cnf
max_heap_table_size = 128M
建表
use test;
--
-- Store engine heap
--
CREATE TABLE `tbl_heap` (   
`id` int(11) NOT NULL auto_increment,   
`name` varchar(32) NOT NULL default '',
`email` varchar(32) NOT NULL default '',  
`summary` varchar(255) default '',
KEY `id` (`id`)   
) ENGINE=HEAP DEFAULT CHARSET=gbk;
--
-- Store engine myisam
--
CREATE TABLE `tbl_isam` (   
`id` int(11) NOT NULL auto_increment,   
`name` varchar(32) NOT NULL default '',
`email` varchar(32) NOT NULL default '',  
`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。


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