You can use "siege" in command line for web server stress testing. There are other tools. I forget it. Just look at the Performance section in http://talks.php.net/ There are some slides of Rasmus Lerdorf about these on http://talks.php.net/ which are very helpful. -- Shiplu Mokaddim My talks, http://talk.cmyweb.net Follow me, http://twitter.com/shiplu SUST Programmers, http://groups.google.com/group/p2psust Innovation distinguishes bet ... ... (ask Steve Jobs the rest) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php