Linux|系统管理|WEB开发

eAccelerator作为一种开源的 PHP 加速方案，在一些网站上测试性能表现显著，虽然ZendPlatform也有这个功能，但是想想它双 CPU 授权的售价高达 1495 美元一年，我想不是每一个人都能买得起的。
下面是安装和测试的笔记。

1.获取最新源代码
proz http://internap.dl.sourceforge.net/sourceforge/eaccelerator/eaccelerator-0.9.4.tar.bz2
2. 解压
tar -vxjf eaccelerator-0.9.4.tar.bz2
3. 编译
$cd eaccelerator-0.9.4
$export PHP_PREFIX=”/usr”
$$PHP_PREFIX/bin/phpize (如果没有这个命令，请安装php-devel包）
$./configure –enable-eaccelerator=shared –with-php-config=/usr/bin/php-config
$make
$sudo make install
4.添加一个基于php的配置文件
#cd /etc/php.d
#cat eaccelerator.ini
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_max=”0″
eaccelerator.shm_ttl=”0″
eaccelerator.shm_prune_period=”0″
eaccelerator.shm_only=”0″
eaccelerator.compress=”1″
eaccelerator.compress_level=”9″
5.重启apache
#/etc/init.d/httpd reload
接下来是针对本机的测试。
首先测试加载了该加速器的值
ab -n 1000 -c 100 http://localhost/index.php
Server Software:        Apache/2.0.52
Server Hostname:        localhost
Server Port:            80

Document Path:          /index.php
Document Length:        363 bytes

Concurrency Level:      100
Time taken for tests:   14.435464 seconds
Complete requests:      1000
Failed requests:        639
  (Connect: 0, Length: 639, Exceptions: 0)
Write errors:           0
Total transferred:      17680035 bytes
HTML transferred:       17496751 bytes
Requests per second:    69.27 [#/sec] (mean)
Time per request:       1443.546 [ms] (mean)
Time per request:       14.435 [ms] (mean, across all concurrent requests)
Transfer rate:          1196.01 [Kbytes/sec] received

Connection Times (ms)
             min  mean[+/-sd] median   max
Connect:        0    0   1.3      0       5
Processing:     5 1240 1149.6   1153    4947
Waiting:        5 1236 1149.5   1153    4946
Total:          5 1241 1149.9   1157    4951

Percentage of the requests served within a certain time (ms)
 50%   1157
 66%   1561
 75%   1873
 80%   2062
 90%   3092
 95%   3390
 98%   3967
 99%   4622
100%   4951 (longest request)

接下来测试没有加载加速器模块
ab -n 1000 -c 100 http://localhost/index.php
Server Software:        Apache/2.0.52
Server Hostname:        localhost
Server Port:            80

Document Path:          /index.php
Document Length:        32292 bytes

Concurrency Level:      100
Time taken for tests:   65.151732 seconds
Complete requests:      1000
Failed requests:        774
  (Connect: 0, Length: 774, Exceptions: 0)
Write errors:           0
Total transferred:      7829669 bytes
HTML transferred:       7640006 bytes
Requests per second:    15.35 [#/sec] (mean)
Time per request:       6515.173 [ms] (mean)
Time per request:       65.152 [ms] (mean, across all concurrent requests)
Transfer rate:          117.36 [Kbytes/sec] received

Connection Times (ms)
             min  mean[+/-sd] median   max
Connect:        0    0   3.8      0     106
Processing:    82 2395 5871.8    430   37210
Waiting:       82 2388 5864.8    426   37210
Total:         82 2395 5873.1    430   37214

Percentage of the requests served within a certain time (ms)
 50%    430
 66%    551
 75%   3743
 80%   4115
 90%   4520
 95%   6922
 98%  34149
 99%  35917
100%  37214 (longest request)

我们看看Requests per second(rps)值，有加速器的值是 69.27,没有加速器的值是15.35，提升343.21%
提升了3倍的请求数，让我很欣慰了。接下来就需要测试在实际服务器上的性能了。