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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() ?>
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2  
Some log output would greatly help. First thing that comes to mind is some sort of PHP error is happening but not being displayed. What are your error logging/display settings? –  WerkkreW Oct 25 '11 at 17:39
    
I agree, this is not enough info. –  Till Nov 25 '11 at 16:16
    
Btw, I'm not saying APC is not to blame, but before you blame a specific extension, I'd disable all others (especially xdebug) and try one by one if you can reproduce the hangs. –  Till Nov 25 '11 at 16:56
    
Please have a look at my comment on serverfault.com/a/407436/128197. Hope this helps :) –  Rashy Jul 13 '12 at 10:05

3 Answers 3

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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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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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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