Comments on: How to Calculate PHP Load Times http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html Knowledge to help you build good websites Fri, 12 Mar 2010 19:10:24 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: Remi http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-385 Remi Fri, 03 Apr 2009 16:00:22 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-385 Even though I see the benefits of this method, as it is so simple, this kind of benchmarking is unlikely to help you find the true bottlenecks in your application. It merely measure the speed of every page and require a lot more effort to pinpoint the slow code. Also, focusing on decreasing the speed of a page does not mean it will be able to scale properly to a large number of users, so it is best to focus on scalability rather than pure speed. I would suggest to use a tool like XDebug (http://www.xdebug.org/) that will profile your code from within PHP (without cluttering your code) and outputs a file with a tremendous amount of details. You can find the bottlenecks of your application within minutes. Even though I see the benefits of this method, as it is so simple, this kind of benchmarking is unlikely to help you find the true bottlenecks in your application. It merely measure the speed of every page and require a lot more effort to pinpoint the slow code. Also, focusing on decreasing the speed of a page does not mean it will be able to scale properly to a large number of users, so it is best to focus on scalability rather than pure speed.

I would suggest to use a tool like XDebug (http://www.xdebug.org/) that will profile your code from within PHP (without cluttering your code) and outputs a file with a tremendous amount of details. You can find the bottlenecks of your application within minutes.

]]> By: Stefan Ashwell http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-280 Stefan Ashwell Mon, 01 Sep 2008 11:39:17 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-280 Thanks for those functions Adam - will come in handy Thanks for those functions Adam - will come in handy

]]> By: Johnson http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-240 Johnson Wed, 14 May 2008 00:24:17 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-240 Nice code snip! Nice code snip!

]]> By: Ron http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-229 Ron Wed, 23 Apr 2008 23:39:25 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-229 I've re-factored this so it's much smaller: top of page: $load_start = array_sum(explode(" ", microtime())); bottom of page: $load_end = array_sum(explode(" ", microtime())); echo "Page generated in ".number_format($load_end - $load_start, 5)." seconds"; :) I’ve re-factored this so it’s much smaller:

top of page:

$load_start = array_sum(explode(” “, microtime()));

bottom of page:

$load_end = array_sum(explode(” “, microtime()));
echo “Page generated in “.number_format($load_end - $load_start, 5).” seconds”;

:)

]]> By: Mark @ TheLocoMono http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-207 Mark @ TheLocoMono Sat, 26 Jan 2008 19:43:16 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-207 This is terrific. I am using a shared hosting plan and a few weeks ago, my CPU was overloading like crazy so I had to disable some plugins to settle things back to normal. Can I do this with exsisting plugins to see which one is causing overload issues? This is terrific. I am using a shared hosting plan and a few weeks ago, my CPU was overloading like crazy so I had to disable some plugins to settle things back to normal.

Can I do this with exsisting plugins to see which one is causing overload issues?

]]> By: Adam http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html/comment-page-1#comment-203 Adam Fri, 04 Jan 2008 20:44:52 +0000 http://www.metatitan.com/php/21/how-to-calculate-php-load-times.html#comment-203 If you click the link in my name, that is the timer function I always use to calculate. Makes it really nice and easy! If you click the link in my name, that is the timer function I always use to calculate. Makes it really nice and easy!

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