RE: [PHP] How to get cpu consumption of a php script

> -----Original Message----- > From: ash@ashleysheridan.co.uk [mailto:ash@ashleysheridan.co.uk] > Sent: Monday, January 17, 2011 2:36 AM > To: Tanoor Dieng; php-general@lists.php.net > Subject: Re: [PHP] How to get cpu consumption of a php script > > I can't think of anything except using top or ps. If you can't guarantee what > process runs what individual script, are you able to just track them all > globally, and check for differences as you start and stop scripts. Perhaps run > certain scripts under different users which should give them their own pid (i > believe, but not tested this) that let's you track them more easily. > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > ----- Reply message ----- > From: "Tanoor Dieng" <newstanoor@gmail.com> > Date: Mon, Jan 17, 2011 10:23 > Subject: [PHP] How to get cpu consumption of a php script > To: <php-general@lists.php.net> > > Hi everybody, > I'm a php developper for a high traffic website. Our web servers run with > lightty? > > We have some issues with the cpu consumption of our servers. > > The problem is that, we don't know exactly which script consumes so much > cpu. > So, we cant to figure out how much cpu does a php script take. > > We have tried 3 methods: > > 1) Microtime: microtime at the beginning and at the end and make the diff. > The problem with that is that it takes the execution time of the script, but in > our script we make: > - connection to database > - connection to memcache > - connection to session server > > All of this is not taken into account, so microtime is not that accurate > > 2) Shell command: we get the pid of the process executing the script and > make a 'top' on this pid . The problem is that the php-cgi manages many > threads so it's not accurate too. > > Is there other methods for dealing with this problem. > > Thanks, > best regards, > > Tanoor. This is untested. Within the same script, you could use [1] or similar and combine with shellexec ps/top to get what you need. I think this would give you a better result. Regards, Tommy [1] php.net/function.getmypid