Is there any free profiling tool with which I can measure the performance of HTML, PHP and JavaScript code independently?
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For the performance of PHP I use Xdebug with cachegrind turned on. For HTML and Javascript I like to use firebug / yslow. | |||
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For html/javascript try: http://developer.yahoo.com/yslow/ this link has 2 tools. Firebug (profile your javascript). and YSlow testing page load times and gives you suggestions on how to fix it. | |||
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If your php pages are using a database, your queries will almost certainly be the most expensive part of any request. And that gets worse with time as your dataset grows. | |||
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