|
MyISAM引擎和Heap引擎执行速度的性能测试：
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。。。-_-#
[SQLyog下进行count操作]
Heap engine select count used time: 4.53
MyISAM engine select count used time: 3.28
[SQLyob下进行select操作]
速度都很快，都在1秒一下，不论是1000条记录，还是200000条记录，个人猜测可能不准确
|
共3页: 上一页 1 [2] [3] 下一页
|
收藏
推荐
评论(0条)
