4 月 16 2010

[Benchmark] eAccelerator v.s. APC on PHP 5.3

FreeBSD ports tree 的 lang/php5 升級到 5.3.2， www/eaccelerator 也升級到 0.9.6。
但是… 目前，FreeBSD ports tree 的 www/pecl-APC 依然是 3.0.19，無法在 PHP 5.3 運作；為了讓它正常運作，jnlin 送過 PR（我沒有先查詢，也送了一個）。

其實 eAccelerator 0.9.6 在 2010 年 2 月初就已經釋出了，可是，從 changelog 看來，很多不錯的功能被砍掉（反璞歸真？）：

Changes in this version:
* Support for PHP 5.3.
* The encoder is removed
* The user cache functions are removed
* The session handler is removed
* The minimal PHP version supported is now 5.1
* Some internal refactoring to clean up the code
* Fixed some bugs (and probably added some)

這麼看來，2008 年的這篇文章的參考價值就低了些…
為了滿足我自己的好奇心，就把 APC 3.1.3p1 裝起來測試看看。

系統/硬體：

CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz
Memory: 6G（DDR2 800 MHz, Dual-Channel）
FreeBSD 8.0-RELEASE-p2 amd64
Apache HTTPD 2.2.14
PHP 5.3.2

設定：

eAccelerator 0.9.6：

eaccelerator.shm_size="128"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.debug="0"
eaccelerator.log_file="/var/log/eaccelerator.log"
eaccelerator.name_space = ""
eaccelerator.check_mtime="1"
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"
eaccelerator.keys="shm_and_disk"

APC 3.1.3p1：

apc.enabled=1
apc.shm_segments=1
apc.shm_size=128
apc.ttl=7200
apc.user_ttl=7200
apc.num_files_hint=1024
apc.mmap_file_mask=/tmp/apc.cache
apc.enable_cli=1

測試結果（ab -c5 -n500）：

	Pure PHP	eAccelerator	APC
WordPress 2.9.2	3.00 req./sec. 332.834 ms/req.	7.61 req./sec. 131.487 ms/req.	8.87 req./sec. 112.750 ms/req.
MediaWiki 1.15.3	1.81 req./sec. 552.822 ms/req.	2.75 req./sec. 363.124 ms/req.	5.93 req./sec. 168.580 ms/req.
Gallery 2.3.1	3.51 req./sec. 284.979 ms/req.	7.91 req./sec. 126.421 ms/req.	7.38 req./sec. 135.506 ms/req.