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 :: Mailing Lists

[ILUG] System load explained.

[ILUG] System load explained.

Michael Thompson michaelnt at gmail.com
Tue Sep 4 09:02:02 IST 2007


On 04/09/07, Walter Faleiro <curtorkar at gmail.com> wrote:
>
> Hi Belgarath,
> I used top to get the load average too, and sometimes it shows processes
> eating 99.9 % of cpu time. But how do I confirm that there is no I/O
> operations involved here. Does load average give only cpu and memory
> consumption? Also can't the memory consumption be because of high I/O?


load average is the average number of processes running over 15s, 1min and
5mins

vmstat will show you IO to disks and swap
vmstat 5 will run every 5 seconds.

tail -f /var/log/messages from another machine might be the first thing to
try.



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