On the left side you find the 'Flat Profile' Once the file is opened you have plenty of information available in theĭifferent panes of KCacheGrind. Analysing Profiles #Īfter a profile information file has been generated you can open it with Holds the profiling information for that request. This header contains the name of the file that Xdebug adds the HTTP header X-Xdebug-Profile-Filename to a The Chrome, Firefox, and SafariĮxtensions that can be used to enable the step debugger (see HTTP Debug Sessions) can also be used with The profiler by using an environment value, a GET/POST parameter, or COOKIE Xdebug.start_with_request#trigger to trigger. You can also selectively enable the profiler by setting Generated by the profiler can be enormous for complex scripts. You have enough space in your xdebug.output_dir as the amount of information You canĬhange the filename format with xdebug.profiler_output_name. The name of the generated fileĪlways starts with ' cachegrind.out.' and ends byĭefault with the PID (process ID) of the PHP (or Apache) process. Instructs Xdebug to start writing profiling information into the directoryĬonfigured with the xdebug.output_dir directive. Please refer to Configure PHP in the documentation to Starting The Profiler #ĭistribution specific PHP ini file, change (or set) the xdebug.mode setting to Package also comes with a perl script 'ct_annotate' which produces ASCII outputįrom the profiler trace files. In case you can not use KDE (or do not want to use KDE) the kcachegrind There is also a web based front-end called Webgrind. If you are on Mac OSX, homebrew has a formula for QCacheGrind. (QCacheGrind is KCacheGrind without KDE bindings). If you are on Windows, there are precompiled QCacheGrindīinaries available. You can install KCacheGrind with your favourite package manager. Tool (Linux, KDE) to analyse your profiling data. Profiling information in the form of a Cachegrind compatible file. Information about how much memory is being used, and which functions and Your PHP code and determine bottlenecks or generally see which parts of yourĬode are slow and could use a speed boost. Xdebug's Profiler is a powerful tool that gives you the ability to analyse Script and visualize those with an external tool such as KCacheGrind or Xdebug's built-in profiler allows you to find bottlenecks in your

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