Find out where your PHP code is slowing down (Performance Issue)

Question

Here\'s my first question at SO.

I have a internal application for my company which I\'ve been recently ask to maintain. The applications is built in PHP and its fai

Answer 1

I use a combination of PEAR Benchmark and log4php.

At the top of scripts I want to profile I create an object that wraps around a Benchmark_Timer object. Throughout the code, I add in $object->setMarker("name");calls, especially around suspect code.

The wrapper class has a destroy method that takes the logging information and writes it to log4php. I typically send this to syslog (many servers, aggregates to one log file on one server).

In debug, I can watch the log files and see where I need to improve things. Later on in production, I can parse the log files and do performance analysis.

It's not xdebug, but it's always on and gives me the ability to compare any two executions of the code.