--- On Fri, 4/3/11, Roshan George <[email protected]> wrote: > At the moment, I'm not seeing any trouble, but last night > there was this > short period when the server started swapping and > performance was > terrible. It would take ages to even serve a static > webpage. > > I sorted the entries in `top` by memory and on top was > mysqld (125 MB > VIRT, 17 MB RES) followed by a few 4 MB apache processes. > Even adding up > the VIRT table (the highest values) comes to a number about > a fourth of > the RAM use reported by `free -m`. >
What was the cpu load at that time? Some program may not use much memory but use lot of cpu, then also we see drop/stagnant performance. I have experienced some such blackouts, while using rsync or some heavy disk read+cpu process. (off course I have no experience with web servers so your problem may be different) Raman.P blog:http://ramanchennai.wordpress.com/ _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
