RedHat Enterprise 6.5环境下使用eAccelerator优化网站性能
第一步：在做优化之前，首先对网站服务器的硬件做一下检测
1，内存信息：2G内存，swap容量为4G
[root@linuxcast ~]# free -m
total used free shared buffers cached
Mem: 1870 1228 642 0 47 435
-/+ buffers/cache: 744 1125
Swap: 4095 0 4095
2，cpu信息，也可以通过cat /proc/cpuinfo查看
[root@linuxcast ~]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 1
On-line CPU(s) list: 0
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 58
Stepping: 9
CPU MHz: 3569.819
BogoMIPS: 7139.63
Hypervisor vendor: VMware
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 8192K
NUMA node0 CPU(s): 0
[root@linuxcast ~]#
3，查看磁盘的续写性能：读取速度为：2544MB，吸入速度为847MB
[root@linuxcast ~]# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 2544 MB in 3.00 seconds = 847.63 MB/sec
[root@linuxcast ~]#
4，对网站首页进行压力测试：ab命令
对指定网页进行10次并发，1000次请求进行压力测试：返回的结果是10.13
也就是说一天24小时可以承受的请求数量为：10*60*60*24=86400
[root@linuxcast ~]# ab -c 10 -n 1000
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd,
Licensed to The Apache Software Foundation,
Benchmarking (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: Apache/2.2.15
Server Hostname:
Server Port: 80
Document Path: /index.php
Document Length: 0 bytes
Concurrency Level: 10
Time taken for tests: 98.761 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Non-2xx responses: 1000
Total transferred: 293000 bytes
HTML transferred: 0 bytes
Requests per second: 9.23 [#/sec] (mean)
Time per request: 987.614 [ms] (mean)
Time per request: 98.761 [ms] (mean, across all concurrent requests)
Transfer rate: 2.90 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 2.0 0 32
Processing: 355 986 49.7 985 1625
Waiting: 355 983 48.8 982 1605
Total: 355 986 49.7 985 1625
Percentage of the requests served within a certain time (ms)
50% 985
66% 997
75% 1004
80% 1010
90% 1032
95% 1050
98% 1076
99% 1097
100% 1625 (longest request)
[root@linuxcast ~]#
第二步：安装eAccelerator，提升网站性能
1，安装Development Tool工具
yum groupinstall -y “Development Tools”
2，，安装php-devel
注：可以在pkgs.org上下载相关的版本（必须和php版本相同）
[root@linuxcast ~]# rpm -qa | grep php
php-pdo-5.3.3-26.el6.x86_64
php-gd-5.3.3-26.el6.x86_64
php-5.3.3-26.el6.x86_64
php-common-5.3.3-26.el6.x86_64
php-devel-5.3.3-26.el6.x86_64
php-mysql-5.3.3-26.el6.x86_64
php-xml-5.3.3-26.el6.x86_64
php-cli-5.3.3-26.el6.x86_64
php-pear-1.9.4-4.el6.noarch
[root@linuxcast ~]# cd
[root@linuxcast ~]# wget
–2014-08-08 14:11:48–
[root@linuxcast ~]# rpm -ivh php-devel-5.3.3-26.el6.x86_64.rpm
3，下载并安装eAccelerator
[root@linuxcast ~]# cd /usr/local/
下载eAccelerator并命名为master.zip：
[root@linuxcast local]# wget https://github.com/eaccelerator/eaccelerator/zipball/master -O master.zip
[root@linuxcast local]# unzip master.zip
重命名解压缩出来的文件夹为eAccelerator：
[root@linuxcast local]# mv eaccelerator-eaccelerator-42067ac/ eaccelerator
[root@linuxcast local]# cd eaccelerator/
[root@linuxcast eaccelerator]# ls
到底通向了什么样的远方呢？
