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Date: Mon, 4 Feb 2008 15:36:22 +0100 From: Lukas Hejtmanek <xhejtman@....muni.cz> To: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Ingo Molnar <mingo@...e.hu>, mingo@...hat.com, linux-kernel@...r.kernel.org Subject: Re: 2.6.24-git4+ regression 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. -- Lukáš Hejtmánek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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