lkml.org 
[lkml]   [2004]   [Mar]   [30]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
FromDenis Vlasenko <>
SubjectRe: sched_yield() version 2.4.24
DateTue, 30 Mar 2004 21:40:05 +0200
On Tuesday 30 March 2004 19:52, Ben Greear wrote:
> Chris Friesen wrote:
> > The cpu util accounting code in kernel/timer.c hasn't changed in 2.4
> > since 2002.  Must be somewhere else.
> >
> > Anyone else have any ideas?
>
> As another sample point, I have fired up about 100 processes with
> each process having 10+ threads.  On my dual-xeon, I see maybe 15
> processes shown as 99% CPU in 'top'.  System load was near 25
> when I was looking, but the machine was still quite responsive.

There was a top bug with exactly this symptom. Fixed.
I use procps-2.0.18.

> I'm guessing this is just an artifact of having lots of processes running
> very often and top is just not able to calculate with fine enough
> granularity?
>
> This is on 2.4.25 kernel.
>
> Ben
--
vda

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:02    [from the cache]
©2003-2008