Hi, I have a PhpBB forum. My configuration : 2 X 5520 XEON 12GB RAM 2 X SAS 15KRPM RAID-0 Cpanel, litespeed 4.0.11, php 5.2.9 My issue is about lsphp5. The php requests are very unstable, the server stop do php requests during somes seconds for exemple(I can do a video if you want) : EXTERNAL APPLICATION : LSPHP5 WAIT Q (2 sec interval) 0 - 0 - 60 - 95 - 170 - 50 - 2 - 0 PHP req/s(2sec interval) 128 - 114 - 0 - 4 - 22 - 160 - 150 - 11 During this time, my website is lagging. (When that the webserver is not doing php request (req/s=0), the cpu load is very low). I changed my HDD, now I have 2 X 300GB SAS 15K RAID-0, but it's doing the same thing. I 12GB of ram and 0ko swap used. DO you have an idea why I'm facing this issue? thanks!