git.m6w6.name Git - m6w6/m6w6.github.io/blob - _posts/2005-11-17-boost-your-website-with-apc.md

   1 ---
   2 title: Boost your Website with APC
   3 author: m6w6
   4 tags:
   5 - PHP
   6 ---
   7
   8 Two weeks ago I plugged [APC](http://pecl.php.net/package/APC) onto my main
   9 customers site, and I'm really satisfied by it now. I already tried it some
  10 time ago, but back then it had some problems with PEARs Quickforms and
  11 similiar heavy OO code, but those problems are fixed for about 90% now, some
  12 8% can be easily fixed by reordering **require** statements and the like and
  13 finally the remaining ~2% are going to be fixed by Rasmus in the foreseeable
  14 future.
  15
  16 Note that I'm using APC with Debians PHP-4.3.10 and Apache2 package, which
  17 proofs a lot IMO ;) and there shouldn't be much that hinders you from trying
  18 it too!
  19
  20 Here's a very simple instruction to boost your PHP enabled webserver:
  21 ```shell
  22 ~$ pear download pecl/apc
  23 ~$ tar xzf APC-3.0.8.tgz
  24 ~$ rm -f package.xml
  25 ~$ cd APC-3.0.8
  26 ~/APC-3.0.8$ /usr/bin/phpize
  27 ~/APC-3.0.8$ ./configure --with-php-config=/usr/bin/php-config
  28     --enable-apc --enable-apc-mmap
  29 ~/APC-3.0.8$ make all
  30 ~/APC-3.0.8$ sudo make install
  31 ```
  32
  33 APC is now installed somewhere in /usr/lib/php.
  34
  35 Some lines to add to php.ini:
  36 ```ini
  37 extension=apc.so
  38
  39 [apc]
  40 apc.enabled = 1
  41 apc.cache_by_default = 1
  42 apc.shm_size = 32
  43 apc.num_files_hint = 500
  44 apc.mmap_file_mask = /tmp/apc.XXXXXX
  45 ```
  46
  47 If you want to cache only a certain virtual host, set apc.cache_by_default to
  48 0 in php.ini and add the respective php_admin_value to your `<VirtualHost>`
  49 directive for the vhost.
  50
  51 The package also contains a useful status script, just copy the shipped
  52 apc.php to your document root. You'll see how the usage of the SHM segment
  53 grows by time, and after some time you'll also see what settings to use for
  54 apc.num_files_hint and apc.shm_size when the whole site is cached.
  55
  56 Sean recently added some [APC docs](http://docs.php.net/apc), too!
  57
  58 Quod est demonstrandum, Website boosted! ;)