网站服务器部署及优化---3---使用eAccelerator提升网站服务器的性能（rhel6.5）

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 http://www.linuxcast.net/index.php

This is ApacheBench, Version 2.3 <$Revision: 655654 $>

Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.linuxcast.net (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:        www.linuxcast.net

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 http://mirror.centos.org/centos/6/os/x86_64/Packages/php-devel-5.3.3-26.el6.x86_64.rpm

--2014-08-08 14:11:48--  http://mirror.centos.org/centos/6/os/x86_64/Packages/php-devel-5.3.3-26.el6.x86_64.rpm

[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

AUTHORS        config.w32   debug.c         eaccelerator.h          ea_dasm.h     ea_restore.h  fnmatch.h      mm.h       optimize.c         win32

bugreport.php  control.php  debug.h         eaccelerator.ini        ea_info.c     ea_store.c    Makefile.frag  NEWS       PHP_Highlight.php

ChangeLog      COPYING      doc             eaccelerator_version.h  ea_info.h     ea_store.h    Makefile.in    opcodes.c  README

config.m4      dasm.php     eaccelerator.c  ea_dasm.c               ea_restore.c  fnmatch.c     mm.c           opcodes.h  README.win32

[root@linuxcast eaccelerator]# ls configure

ls: cannot access configure: No such file or directory

在eAccelerator目录中执行phpize命令，生成configure文件：

[root@linuxcast eaccelerator]# phpize 

Configuring for:

PHP Api Version:         20090626

Zend Module Api No:      20090626

Zend Extension Api No:   220090626

[root@linuxcast eaccelerator]# ls configure

configure

安装eAccelerator：

[root@linuxcast eaccelerator]# ./configure

[root@linuxcast eaccelerator]# make && make install

第三步：编辑eAccelerator的配置文件：

在/etc/php.d目录下创建eacceleractor.ini

内容参照：https://github.com/eaccelerator/eaccelerator网页上的

To install as PHP extension:

eAccelerator.ini文件内容：

extension="eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"

eaccelerator.shm_only="0"

创建eAccelerator虚拟目录：

mkdir /tmp/eaccelerator

设置eAccelerator目录的权限：
chmod 0777 /tmp/eaccelerator

注：配置完成之后需要重新启动httpd服务

service httpd restart

第四步：安装好eAccelerator之后，再次对网站首页进行压力测试：

测试结果：

[root@linuxcast php.d]# ab -c 10 -n 1000 http://www.linuxcast.net/index.php

This is ApacheBench, Version 2.3 <$Revision: 655654 $>

Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.linuxcast.net (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:        www.linuxcast.net

Server Port:            80

Document Path:          /index.php

Document Length:        0 bytes

Concurrency Level:      10

Time taken for tests:   41.735 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:    23.96 [#/sec] (mean)

Time per request:       417.353 [ms] (mean)

Time per request:       41.735 [ms] (mean, across all concurrent requests)

Transfer rate:          6.86 [Kbytes/sec] received

Connection Times (ms)

              min  mean[+/-sd] median   max

Connect:        0    0   0.6      0      10

Processing:   179  417  21.9    416     480

Waiting:      178  415  21.7    415     480

Total:        179  417  21.9    416     480

Percentage of the requests served within a certain time (ms)

  50%    416

  66%    423

  75%    429

  80%    432

  90%    440

  95%    450

  98%    461

  99%    466

 100%    480 (longest request)

[root@linuxcast php.d]# 

可以看到优化后的返回结果为：Requests per second:    23.96 [#/sec] (mean)

也就是说，是优化之前的三倍。

php的加速器除了eAccelerator之外还有xcache、APC（Alternative PHP Cache）等...