Messages in this thread |  | | | Subject | Re: 2.6.24-git4+ regression | | From | Peter Zijlstra <> | | Date | Mon, 04 Feb 2008 15:45:10 +0100 | |
On Mon, 2008-02-04 at 15:36 +0100, Lukas Hejtmanek wrote:
> On Mon, Feb 04, 2008 at 12:36:36PM +0100, Peter Zijlstra wrote:
> > I can't reproduce this with a pure cpu load. I started 10
> > while :; do :; done &
> > instances and aside from slowing down, nothing bad happened.
>
> yes, while true; do true; does nothing wrong. But running make -j2 in kernel
> sources or mesa sources is catastrophic.
>
> > May I suggest you try latency top to see if there is something in your
> > build scenario that generates horrible latencies (some IO path or
> > whatnot).
>
> see my previous mail to Ingo (you were Cc.), latency top says that Xorg and
> gnome-terminal suffers 300+ms latency in scheduler: waiting for cpu.
what happens when you turn CONFIG_FAIR_GROUP_SCHED off?
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