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Profiling

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dietrichm edited this page Aug 11, 2011 · 1 revision

Profiling is done using the Xdebug extension to PHP. Results can be interpreted with an external tool.

Xdebug

Download/install

Downloads at http://www.xdebug.org/download.php
MacPorts: port install php5-xdebug

Enabling/running

In php.ini:

xdebug.profiler_enable = 0
xdebug.profiler_enable_trigger = 1
xdebug.profiler_output_dir = /path/to/profiles

Call the forum with GET variable XDEBUG_PROFILE=1. This creates a cachegrind.out.x file.

Interpreting

KCacheGrind

Downloads at http://kcachegrind.sourceforge.net/html/Download.html
MacPorts: port install kcachegrind

Open cachegrind.out.x file for results.

WinCacheGrind

Untested. Information at http://sourceforge.net/projects/wincachegrind/