First I would like to say that I heard extremely good things about litespeed web server, so I got few questions and i hope somebody can figure it out. I run one relatively big site, 1 bil. hits per month and lately i'm experiencing attacks on my site, it is no longer syn flood but by looks of it bot net is forcing reload of my site. So i thought it is best time to try litespeed trial version to see if it can cope with my traffic. My setup: Xeon 3060 (db and web on same box) 4GB of ram Software: Cpanel 11 Apache 2.2.11 (prefork) with PHP 5.2.8 and Xcache 1.2.2 Litespeed is like i said latest trial version 3.3.24 with compiled PHP 5.2.8 and it looks like Xcache is loaded also. First thing that happened after I have loaded Litespeed was huge load 12 istead of 3 which is also high for this part of the day. This is picture of load when litespeed was loaded, i dont need to see that site was unresponsive, i could load forum but if i wanted to go to subsection i would get server is busy. In php info it says xcache is loaded but when i loaded forum it says xcache variables are missing so that is broken too. Please advince what can I do, I have 13 more days of trial so I would like to switch if it will work better than my current apache setup. I'm sorry because of so big post, but i'm still in shock because of load, I have expected 0.50 and i got 12. More info: Server log viewer: Log Size: 325,507.43 KB In logs i see also bunch of this: 503 Service Unavailable 2009-01-21 01:50:52.417 [NOTICE] The maximum number of file descriptor limit is set to 6000. 2009-01-21 01:50:52.417 [NOTICE] [config:server:epsr:lsphp5]'Process Limit' probably is too low, adjust the limit to: 310. 2009-01-21 01:50:52.417 [NOTICE] [config:server:epsr:lsphp4]'Process Limit' probably is too low, adjust the limit to: 310.