MySQL中MyISAM引擎和Heap引擎執行速度性能測試(1)

引自heiyeluren的博客】測試環境

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=InnoDB DEFAULT CHARSET=gbk;

插入數據

說明：每次都是空表插入數據

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

查詢數據

表裡分表有：200000條記錄，兩個表數據一致

直接select，10000次，每次取100條記錄

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條記錄

Heap engine select 1000 times, 10000 record used time: 111.54126811028
MyISAM engine select 1000 record used time: 116.79438710213

增加where條件，1000次，每次取10000條記錄

Heap engine select 1000 times, 10000 record used time: 111.52102303505
MyISAM engine select 1000 times, 10000 record used time: 117.68481087685

where條件，10000次，每次從1000條起，取1000條記錄

Heap engine select 10000 times, 1000 record used time: 124.28988695145
MyISAM engine select 10000 times, 1000 record used time: 139.82107305527

where條件增加like，10000次，每次從1000條起，取1000條記錄

Heap engine select 10000 times, 1000 record used time: 145.43780493736
MyISAM engine select 10000 times, 1000 record used time: 163.56296992302

where條件增加索引，10000次，每次從1000條起，取1000條記錄

-- 建立索引 (在SQLyob下執行)
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：不合適的索引還不如不要。