Hello!
I wanted to get back so i can close this topic with happy thoughts.
Admins managed to find which script was over working my dedi, then they disabled it and now everything went back to normal.
Just for your info the script was a url rewriter thta made joomla urls more
seo friendly.
So Joomla usres, watch out for such components, they work for
seo but they can also work out ur server
thanx everyone for replying!