This document summarizes the 6th Kansai PHP Study meeting. The meeting covered installing PHP 5.5 beta4, using the Zend OPcache for opcode caching and optimization, benchmarking a CakePHP app with and without OPcache, and briefly discussed APCu and Yac for user data caching. Zend OPcache provides opcode caching and optimization in PHP 5.5 core but requires configuration in php.ini, and user data caching requires a separate extension. The benchmark showed a 6x performance improvement for the CakePHP app when enabling OPcache.

1. 2013/04/26 @shin1x1
6th Kansai PHP Study
PHP5.5
Zend OPcache

2. @shin1x1
(c) 2013 Masashi Shinbara @shin1x1
http://www.1x1.jp/blog/
https://github.com/shin1x1
PHP / DevOps / AWS /
Varnish / Fabric / Chef

3. Agenda
(c) 2013 Masashi Shinbara @shin1x1
1. PHP5.5 beta4 install
2. Zend OPcache
3. Benchmark
4. Data Cache

4. PHP5.5 beta4 install
(c) 2013 Masashi Shinbara @shin1x1

5. PHP5.5 beta4 install
(c) 2013 Masashi Shinbara @shin1x1
# for RHEL6 / CentOS6
$ sudo yum install httpd-devel libxml2-
devel
# for extract .xz file
$ sudo yum insall xz

6. PHP5.5 beta4 install
(c) 2013 Masashi Shinbara @shin1x1
$ curl -OL http://downloads.php.net/dsp/
php-5.5.0beta4.tar.xz
$ tar xvf php-5.5.0beta4.tar.xz
$ cd php-5.5.0beta4
$ ./configure --enable-mbstring --with-
apxs2
$ make
$ sudo make install

7. PHP5.5 beta4 install
(c) 2013 Masashi Shinbara @shin1x1
$ php -v
PHP 5.5.0beta4 (cli) (built: Apr 25 2013
21:21:51)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0-dev, Copyright (c)
1998-2013 Zend Technologies

8. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1

9. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1
•aka Zend Optimizer+
https://github.com/zend-dev/ZendOptimizerPlus
•opcode cache
•opcode optimization
•no user data cache

10. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1
$ sudo cp -a php.ini-production /usr/
local/lib/php.ini
$ sudo echo "zend_extension=opcache.so"
>> /usr/local/lib/php.ini

11. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1
$ php -v
PHP 5.5.0beta4 (cli) (built: Apr 26 2013
13:26:28)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0-dev, Copyright (c)
1998-2013 Zend Technologies
with Zend OPcache v7.0.2-dev,
Copyright (c) 1999-2013, by Zend
Technologies

12. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1
$ php -i | grep -i opcache
opcache.blacklist_filename => no value => no value
opcache.consistency_checks => 0 => 0
opcache.dups_fix => Off => Off
opcache.enable => On => On
opcache.enable_cli => Off => Off
opcache.enable_file_override => Off => Off
opcache.error_log => no value => no value
opcache.fast_shutdown => 0 => 0
opcache.force_restart_timeout => 180 => 180
opcache.inherited_hack => On => On
opcache.interned_strings_buffer => 4 => 4
opcache.load_comments => 1 => 1
opcache.log_verbosity_level => 1 => 1
opcache.max_accelerated_files => 2000 => 2000
....

13. Zend OPcache
(c) 2013 Masashi Shinbara @shin1x1
https://github.com/zend-dev/ZendOptimizerPlus

14. Benchmark
(c) 2013 Masashi Shinbara @shin1x1

15. Benchmark
(c) 2013 Masashi Shinbara @shin1x1
<?php
class HelloController extends AppController {
public $uses = array();
public function index() {
var_dump("Hello");
exit;
}
}
•CakePHP 2.3.2

16. Benchmark
(c) 2013 Masashi Shinbara @shin1x1
$ ab -c 50 -n 1000 http://localhost/hello
•CakePHP 2.3.2

17. Benchmark
(c) 2013 Masashi Shinbara @shin1x1
•Zend OPcache off
Requests per second: 41.05 [#/sec]

18. Benchmark
(c) 2013 Masashi Shinbara @shin1x1
•Zend OPcache off
Requests per second:270.55 [#/sec]
•Zend OPcache on
Requests per second: 41.05 [#/sec]

19. Data Cache
(c) 2013 Masashi Shinbara @shin1x1

20. APCu
(c) 2013 Masashi Shinbara @shin1x1
•APCu - APC User Cache
https://github.com/krakjoe/apcu
http://pecl.php.net/package/APCu

21. Yac
(c) 2013 Masashi Shinbara @shin1x1
•Yac(Yet Another Cache)
https://github.com/laruence/yac
http://www.laruence.com/2013/03/18/2846.html
？

22. Summary
(c) 2013 Masashi Shinbara @shin1x1
•Zend OPcache が標準バンドル
•php.ini で設定が必要
（beta4時点）
•データストアは別拡張で

23. @shin1x1
(c) 2013 Masashi Shinbara @shin1x1