Re: sluggish system responsiveness under higher IO load

From: Matthias Dahl
Date: Sun Sep 03 2006 - 07:13:20 EST


On Thursday 10 August 2006 14:28, Jens Axboe wrote:

>> > [...] It would be
>> > nice if you could gather vmstat 1 info during a problematic period.
>> > blktrace info could also be very useful:
>>
>> - Does disabling preemtion (CONFIG_PREEMPT_NONE=y) help?

> http://www.mortal-soul.de/blktrace.log.bz2
> http://www.mortal-soul.de/vmstat.log.bz2

Jens, did you get these? Just wondered because it's been almost a month since.
BTW... just a few more observations:

1. running an OpenGL app like ET and just having some compiling done in the
background or some light disk io gives distorted sound playback as well as
very poor OpenGL performance

2. switching between console and xorg also results in short sound distortions
even though the cpu load is almost zero

Maybe those and the original problem are somehow related.

Thanks...
matthew.

--
VGER BF report: U 0.500007
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/