Re: Problems benchmarking php Scripts

>I have been trying to benchmark the backend scripting for a flash online >game, for this purpose i wrote another PHP Script that uses fopen to >make exactly the same requests the flash movie would make with the same >timing, and writes a log of the game session into a database. >I run this script from the shell of a linux box using the php CGI >binary, and start it for a couple of times, Wild Hypothesis: Bench-marking the PHP Binary as opposed to the Module is probably not very accurate... >Sometime i get to start a hundred scripts or more, but they disappear in >very short time. You may have simply run out of process space or hit some OS limit or... >i have the outputs pointed to /dev/null when putting the scripts into Don't. Point them to /temp/$PID or something to get output you can use. I got no idea how to do that, mind you, but there has to be some way... If nothing else, alter your logging to include a process ID, and output them all using http://php.net/error_log >I also noticed when looking at the output of 'top' i see few httpd >processes crashing saying <defunct>, this happens more rarely when i By any chance do you have Oracle compiled in?... There's some compile-time configuration switch you need to use to re-compile to get rid of those... I forget exactly where I found that info... Maybe ChangeLog? >The benchmark scripts should log errors if there was no response from >the server but i dont get any of those errors in the logs. Have the benchmark scripts log much, much more, and narrow it down. For example, add a line at the begining and end of your script logging the process ID and that it's starting. I suspect the 100 processes you see starting aren't *REALLY* starting, cuz you're out of process space or there's some limit, and they live only long enough to print "Unable to fork" or somesuch. PHP itself never really gets going. -- WARNING richard@zend.com address is an endangered species -- Use ceo@l-i-e.com Wanna help me out? Like Music? Buy a CD: http://l-i-e.com/artists.htm Volunteer a little time: http://chatmusic.com/volunteer.htm