PHP 预编译加速： eAccelerator的安装和性能比较

eAccelerator已经是很常用的PHP平台预编译加速的手段了。今天在自己机器上尝试安装了一下，备忘如下：

获得源代码：
http://bart.eaccelerator.net/source/
编译：需要有autoconf支持，解包后在源程序目录下：

/usr/local/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=/usr/local/bin/php-config
make
sudo make install

配置增加如下：sudo vi /usr/local/lib/php.ini

extension_dir = "/usr/local/lib/php/extensions"
extension="/no-debug-non-zts-20060613/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"

2006-06-03更新
在apache 2.2的升级过程中:发现php的相关模块都需要重新编译 需要注意包含哪个目录下的 eaccelerator.so 文件
/usr/local/lib/php/extensions$ ls -1
no-debug-non-zts-20020429
no-debug-zts-20020429
否则eAccelerator会无法生效, 我测试的结果在apache 2.2下eAccelerator的效果比apache 1.3下还差一些;

最好创建专用的缓存目录：

sudo mkdir /tmp/eaccelerator
sudo chmod 0777 /tmp/eaccelerator

重启一下apache：
sudo /home/apache/bin/apachectl restart
通过phpinfo()已经可以看到：eAccelerator启用了
[chedong@chedong eaccelerator-0.9.5.3]$ php -v
PHP 5.2.8 (cli) (built: Jan 14 2009 02:44:39)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
with eAccelerator v0.9.5.3, Copyright (c) 2004-2006 eAccelerator, by eAccelerator

用phpinfo这个脚本本身还做了一下性能对比测试：对于纯php代码（不考虑数据库瓶颈/文件IO等操作）的运行效率的确有3-5倍的效率提升；

测试：
/home/apache/bin/ab -c 20 -n1000 http://www.chedong.com/phpMan.php/phpinfo

    
    
    
    

     
     
     
     eAccelerator 启用                                             |
     
     
     
     eAccelerator 关闭
Document Length:        32006 bytes                           |Document Length:        29136 bytes
Concurrency Level:      20                                    |Concurrency Level:      20
Time taken for tests:   5.813 seconds                         |Time taken for tests:   23.896 seconds
Complete requests:      1000                                  |Complete requests:      1000
Failed requests:        
     
     
     
     89                                    |Failed requests:        
     
     
     
     109
   (Connect: 0, Length: 89, Exceptions: 0)                    |   (Connect: 0, Length: 109, Exceptions: 0)
Broken pipe errors:     0                                     |Broken pipe errors:     0
Total transferred:      32534962 bytes                        |Total transferred:      29578714 bytes
HTML transferred:       32263316 bytes                        |HTML transferred:       29308693 bytes
Requests per second:    
     
     
     
     172.03 [#/sec] (mean)                 |Requests per second:    
     
     
     
     41.85 [#/sec] (mean)
Time per request:       116.26 [ms] (mean)                    |Time per request:       477.92 [ms] (mean)
Time per request:       
     
     
     
     5.81 [ms]                             |Time per request:       
     
     
     
     23.90 [ms]
Transfer rate:          5596.93 [Kbytes/sec] received         |Transfer rate:          1237.81 [Kbytes/sec] received
                                                              |
Connnection Times (ms)                                        |Connnection Times (ms)
              min  mean[+/-sd] median   max                   |              min  mean[+/-sd] median   max

     
     
     
     Connect: 0 19 12.1 17 72 |Connect: 0 91 58.9 89 424 Processing: 53 92 22.0 90 219 |Processing: 140 379 209.6 366 4078 Waiting: 39 89 21.9 88 218 |Waiting: 113 359 210.6 349 4076 Total: 53 111 16.4 109 251 |Total: 140 470 203.7 450 4321
                                                              |
Percentage of the requests served within a certain time (ms)  |Percentage of the requests served within a certain time (ms)

     
     
     
      50% 109 | 50% 450 66% 110 | 66% 453 75% 111 | 75% 456 80% 116 | 80% 460 90% 130 | 90% 490 95% 145 | 95% 626 98% 158 | 98% 830 99% 167 | 99% 831 100% 251 (last request) | 100% 4321 (last request)

    
    
    
    

2006-08-21
用yum安装autoconf时候出警告：

warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID db42a60e
Public key for autoconf-2.59-5.noarch.rpm is not installed
Retrieving GPG key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora
GPG key at file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora (0x4F2A6FD2) is already installed

The GPG keys listed for the "Fedora Core 4 - i386 - Base" repository are already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.

按照 Dan的回复：修复一下 rpm --import /usr/share/rhn/RPM-GPG-KEY 然后再安装就可以了。

2006-11-03 升级PHP后，eAccelerator需要重新编译，并且设置扩展的公共根路径：
; Directory in which the loadable extensions (modules) reside.
extension_dir = "/usr/local/lib/php/extensions"
extension="/no-debug-non-zts-20060613/eaccelerator.so"

否则会出现错误：

PHP Warning: Unknown(): Unable to load dynamic library './/usr/local/lib/php/extensions/no-debug-non-zts-20020429/eaccelerator.so' - .//usr/local/lib/php/extensions/no-debug-non-zts-20020429/eaccelerator.so: cannot open shared object file: No such file or directory in Unknown on line 0

作者： 车东 发表于：2006-05-25 15:05 最后更新于：2009-01-14 12:01
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