網站伺服器部署及最佳化---3---使用eAccelerator提升網站伺服器的效能（rhel6.5）

標籤：eaccelerator、網站最佳化、lamp效能提升

RedHat Enterprise 6.5環境下使用eAccelerator最佳化網站效能

第一步：在做最佳化之前，首先對網站伺服器的硬體做一下檢測

1，記憶體資訊：2G記憶體，swap容量為4G

[[email protected] ~]# 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資訊，也可以通過cat /proc/cpuinfo查看

[[email protected] ~]# 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

[[email protected] ~]# 

3，查看磁碟的續寫效能：讀取速度為：2544MB，吸入速度為847MB

[[email protected] ~]# hdparm -t /dev/sda

/dev/sda:

 Timing buffered disk reads: 2544 MB in  3.00 seconds = 847.63 MB/sec

[[email protected] ~]#

4，對網站首頁進行壓力測試：ab命令

對指定網頁進行10次並發，1000次請求進行壓力測試：返回的結果是10.13

也就是說一天24小時可以承受的請求數量為：10*60*60*24=86400

[[email protected] ~]# 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)

[[email protected] ~]# 

第二步：安裝eAccelerator，提升網站效能

1，安裝Development Tool工具

yum groupinstall -y "Development Tools"

2，安裝php-devel

註：可以在pkgs.org上下載相關的版本（必須和php版本相同）

[[email protected] ~]# 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

[[email protected] ~]# cd 

[[email protected] ~]# 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

[[email protected] ~]# rpm -ivh php-devel-5.3.3-26.el6.x86_64.rpm 

3，下載並安裝eAccelerator

[[email protected] ~]# cd /usr/local/

下載eAccelerator並命名為master.zip：

[[email protected] local]# wget https://github.com/eaccelerator/eaccelerator/zipball/master -O master.zip

[[email protected] local]# unzip master.zip 

重新命名解壓縮出來的檔案夾為eAccelerator：

[[email protected] local]# mv eaccelerator-eaccelerator-42067ac/ eaccelerator

[[email protected] local]# cd eaccelerator/

[[email protected] 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

[[email protected] eaccelerator]# ls configure

ls: cannot access configure: No such file or directory

在eAccelerator目錄中執行phpize命令，產生configure檔案：

[[email protected] eaccelerator]# phpize 

Configuring for:

PHP Api Version:         20090626

Zend Module Api No:      20090626

Zend Extension Api No:   220090626

[[email protected] eaccelerator]# ls configure

configure

安裝eAccelerator：

[[email protected] eaccelerator]# ./configure

[[email protected] eaccelerator]# make && make install

第三步：編輯eAccelerator的設定檔：

在/etc/php.d目錄下建立eacceleractor.ini

內容參照：https://github.com/eaccelerator/eaccelerator網頁上的

To install as PHP extension:

eAccelerator.ini檔案內容：

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"

建立eAccelerator虛擬目錄：

mkdir /tmp/eaccelerator

設定eAccelerator目錄的許可權：
chmod 0777 /tmp/eaccelerator

註：配置完成之後需要重新啟動httpd服務

service httpd restart

第四步：安裝好eAccelerator之後，再次對網站首頁進行壓力測試：

測試結果：

[[email protected] 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)

[[email protected] php.d]# 

可以看到最佳化後的返回結果為：Requests per second:    23.96 [#/sec] (mean)

也就是說，是最佳化之前的三倍。

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

本文出自 “森林部落格” 部落格，請務必保留此出處http://murongqingqqq.blog.51cto.com/2902694/1537477