时间:2021-07-01 10:21:17 帮助过:29人阅读
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: 3.5008587837219MyISAM engine insert 10000 record used time:
4.5881390571594
50000 Record
Heap engine insert 50000 record used time: 19.895354986191MyISAM engine insert 50000 record used time: 33.866044998169
100000 Record
Heap engine insert 100000 record used time: 36.200875997543MyISAM engine insert 100000 record used time: 68.34194111824
200000 Record
Heap engine insert 200000 record used time: 68.00207901001MyISAM 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: 12.122506141663MyISAM 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: 111.54126811028MyISAM 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: 111.52102303505MyISAM engine select 1000 times, 10000 record used time: 117.68481087685