PHP APC安裝與使用

最簡單的方法，找到php安裝目錄的pecl

自動安裝：

# /usr/local/php/bin/pecl install apc 

下面按提示一步步完成即可    

配置/etc/php.ini 末尾加入
extension=apc.so

手動安裝：

官網 http://cn2.php.net/manual/zh/book.apc.php

下載http://pecl.php.net/package/APC 找最新的

#wget http://pecl.php.net/get/APC-3.1.9.tgz

# tar -zxvf APC-3.1.9.tgz
# cd APC-3.1.9
# /usr/local/php/bin/phpize （生產configure檔案）
# ./configure –enable-apc –enable-apc-mmap –with-php-config=/usr/local/php/bin/php-config
# make
# make install

拷貝添加SO檔案
# cp /usr/local/lib/php/extensions/no-debug-zts-20060613/apc.so /usr/local/php/lib/php/extensions/apc.so
# chmod 755 /usr/local/php/lib/php/extensions/apc.so
修改PHP.INI使之啟動APC模組
修改 php.ini下
extension_dir = “./”
extension_dir = “/usr/local/php/lib/php/extensions”
配置/etc/php.ini 末尾加入
extension=apc.so
apc.enabled = 1
apc.cache_by_default = on
apc.shm_segments = 1
apc.shm_size = 128
apc.ttl = 7200
apc.user_ttl = 7200
apc.num_files_hint = 1024
apc.write_lock = On
apc.gc_ttl=3600
apc.ttl=0
apc.mmap_file_mask=/tmp/apc.XXXXXX
重啟apache

#/usr/local/apache2/bin/apachectl restart

使用APC

<?php

print_r(apc_cache_info());

?>

 

注意 在瀏覽器看會不是很友好，可以查看網頁原始碼就看到很清晰

Array(    [num_slots] => 1031    [ttl] => 0    [num_hits] => 4    [num_misses] => 1    [num_inserts] => 1    [expunges] => 0    [start_time] => 1322818377    [mem_size] => 4240    [num_entries] => 1    [file_upload_progress] => 1    [memory_type] => mmap    [locking_type] => spin Locks    [cache_list] => Array        (            [0] => Array                (                    [type] => file                    [device] => 2049                    [inode] => 883230                    [filename] => /var/www/tb.php                    [num_hits] => 4                    [mtime] => 1322818340                    [creation_time] => 1322818379                    [deletion_time] => 0                    [access_time] => 1322818482                    [ref_count] => 1                    [mem_size] => 4240                )        )    [deleted_list] => Array        (        )    [slot_distribution] => Array        (

... ...

 

 多次點擊，可以發現num_hits在變化，說明快取命中了！

壓力測試看效果：

 

怎麼壓力測試看之前的文章  http://blog.csdn.net/21aspnet/article/details/6595984

先看看關閉apc功能，在php.ini中配置

# ab -n1000 -c10 http://localhost/tb.php

這個時候吞吐率Requests per second 比沒用之前提高許多

 

 

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另外幾款php緩衝工具

Xcache

http://xcache.lighttpd.net/

eAccelerator

http://sourceforge.net/projects/eaccelerator/