[K12OSN] bottleneck question
Les Mikesell
les at futuresource.com
Fri Sep 10 19:45:46 UTC 2004
On Fri, 2004-09-10 at 14:15, Liam Marshall wrote:
> just ran vmstat 5 again. am sitting at 0's for si so bi and bo says
> 198 cpu id says 0 Can you tell waht the likely problem is there?
That shows that at that moment, the CPU was the bottleneck (0% idle).
That's not a huge amount of disk activity either so adding RAM won't
help much even to increase the disk buffering. 'top' will show
single processes using a lot of CPU. 'ps ax >file' will capture
a snapshot of all currently running processes along with their
total CPU time. If you review the file you may find things that
don't need to be running at all. A faster server or splitting
some of the users or apps off to a different server may be the
only real answer.
---
Les Mikesell
les at futuresource.com
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