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Date: Mon, 12 Jan 2009 14:14:06 +0100 From: Ingo Molnar <mingo@...e.hu> To: Mike Galbraith <efault@....de> Cc: Brian Rogers <brian@...w.org>, linux-kernel@...r.kernel.org, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: Re: [BUG] How to get real-time priority using idle priority * Mike Galbraith <efault@....de> wrote: > > I haven't been able to reproduce complete hangs, but with your proggy > > adapted to my quad, _and_ the addition of a SCHED_NORMAL hog, I can > > reproduce some very bad interactivity, including massive character > > repeats while attempting to type, and general "lurchiness" (_bad_ > > wakeup latency). I'll poke it with a sharp stick or two. > > Would you mind trying the below? i've applied your fix to tip/sched/urgent and merged it into tip/master. Brian, you might want to test tip/master, as per: http://people.redhat.com/mingo/tip.git/README which now has this fix included. Can you make it break? Ingo -- 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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