Fedora 14 under constant load

[Fabian A. Scherschel]

Yeah, I seem to have the same problem.

Tasks: 199 total,   1 running, 198 sleeping,   0 stopped,   0 zombie
Cpu(s): 14.6%us,  7.9%sy,  0.1%ni, 76.9%id,  0.3%wa,  0.0%hi,  0.1%si,
 0.0%st
Mem:   3056368k total,  2275500k used,   780868k free,    85872k buffers
Swap:  5144572k total,        0k used,  5144572k free,  1503724k cached

18:56:04 up  9:35,  3 users,  load average: 1.15, 1.00, 0.91


# Fabian A. Scherschel
# Host & Producer, Sixgun Productions
# Member, Fedora Design Team



On Fri, Oct 15, 2010 at 6:47 PM, Orion Poplawski <orion at cora.nwra.com>wrote:

> On 10/14/2010 05:58 PM, Jesse Keating wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On 10/14/2010 04:49 PM, John Poelstra wrote:
> >> That's what's so mysterious, very little CPU time or activity.
> >
> > I saw this at one point, and the kernel folks found it to be a load
> > balancing thing gone awry in the kernel.
> >
> > 2.6.35.6-33.rc1 seems to include a patch:
> >
> > - - Add sched-35-increment-cache_nice_tries-only-on-periodic-lb.patch,
> > another fix for excessive scheduler load balancing.
> >
> > That should be in kernel-2.6.35.6-39.fc14, which is in dist-f14.  My
> > load went down and the laptop (also an M1330) has cooled down a bit, but
> > it is still above one usually.
>
> With 2.6.35.6-43.fc14.i686.PAE, after letting the machine quiet down a bit
> after logging in and starting up Firefox and Thunderbird:
>
>
> top - 10:45:59 up 8 min, 14 users,  load average: 0.81, 1.65, 1.12
> Tasks: 184 total,   2 running, 182 sleeping,   0 stopped,   0 zombie
> Cpu(s):  2.0%us,  0.8%sy,  0.0%ni, 97.0%id,  0.2%wa,  0.0%hi,  0.0%si,
>  0.0%st
>
> Top causes for wakeups:
>   40.6% (117.7)   [kernel scheduler] Load balancing tick
>   29.8% ( 86.4)   firefox
>    5.9% ( 17.1)   konsole
>    5.4% ( 15.6)   PS/2 keyboard/mouse/touchpad interrupt
>    3.7% ( 10.7)   thunderbird-bin
>    3.6% ( 10.5)   [ata_piix] <interrupt>
>
> Actually moving the mouse and typing seems to bring the load back up to 1.
> Never saw it go below .8
>
> --
> Orion Poplawski
> Technical Manager                     303-415-9701 x222
> NWRA/CoRA Division                    FAX: 303-415-9702
> 3380 Mitchell Lane                  orion at cora.nwra.com
> Boulder, CO 80301              http://www.cora.nwra.com
> --
> test mailing list
> test at lists.fedoraproject.org
> To unsubscribe:
> https://admin.fedoraproject.org/mailman/listinfo/test
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.fedoraproject.org/pipermail/test/attachments/20101015/cbdaf028/attachment.html