Simon wrote: > Hi There, > > We are seeing a large spike in load average on our web server (from > 0.xx to 10-15.xx) but there does not seem to be anything hogging the > CPUs or anything... Am i missing something here? What can i do to > check other issues. > > Thanks > > Simon > > [snip top output]
Check for processes in the uninterruptible sleep mode (D in ps). Those processes contribute a full point to your load average, for each process in wait. That is, if you have 15 processes in the D state, your load average will be 15. This state is normally caused by a slow i/o process. There's nothing you can do about it, unless you know which i/o is slow, and can speed it up. Justin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
