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gremo
Asked: 2011-10-07 12:14:26 +0800 CST

PHP APC Accelerator completely breaks Apache2 on Windows?

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My local development configuration:

  • Apache 2.2.21 VC9 downloaded from Apache Lounge (as suggested at PHP For Windows website. Manual installation as service.
  • PHP 5.3.8 VC9 x86 Thread Safe, installed manually from the zip file.
  • PHP APC 20110109-5.3-vc9-x86 downloaded from here, then i added extension=php_apc.dll to my php.in.
  • Xdebug PHP 5.3 VC9 TS (32 bit), if relevant

Result: sometimes page hangs and i must restart Apache manually from services panel. Anyone lese experienced this? Is my configuration wrong? THis is happening even with a simple phpinfo page:

<?php phpinfo() ?>
windows php apache-2.2 alternative-php-cache

3 Answers

  1. APC and xdebug generally don't play well together in my experience. I suspect it will run fine with APC if you disable xdebug.

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  2. Start by ruling out Apache - call 'php -m' to get a list of modules and see how responsive that is.

    If it's slow, then you know PHP is to blame. Disable every module and enable each one at a time, running php -m to check response.

    Pre 5.3.8 the curl extension caused similar woes, but that was corrected.

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  3. Use the apc.php file from apc package and use it to see how your APC is using memory.

    Give it lot of ram, until he has 20% unused.

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