Re: Why so must idle time ?

From: Giuliano Pochini (pochini@shiny.it)
Date: Fri Jul 07 2000 - 12:22:47 EST


>> I have a machine running web server. It has a lot of httpd's loaded and
>> most of them are sleeping. The load average is always around 7-13, so I
>> wonder why the CPU usage doesn't reach ~100%. It wastes CPU time or
>> simply there is something top does not show ?
>>
> AFAIK, load is not strictly a function of CPU usage - it's actually the
> amount of processes that have to
> wait for time on a CPU (??) and can be directly influenced by various other
> stuff like IRQs, disk usage,
> peripheral load etc... so you might want to look at something more
> informative - like vmstat

Very low disc I/O, no swapping, 2000-5000 context-switces/s.

Bye.
    Giuliano Pochini ->)|(<- Shiny Corporation {AS6665} ->)|(<-

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