Help with vmstat and apache processes
Please help! I'm fairly new to server admin. I'm running an application on an Ubuntu (Jaunty) Linux box. Recently it's been getting very slow. I read that this could be due to problems with memory and/or I/O. I've run vmstat -S M 2 and have got this output (see attached image).
The problem is I've no idea how to interpret what's going on... The wa column seems really high and bi shoots up whenever someone searches the site. What's this telling me about my system??