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Message-ID: <20061008170538.GZ8814@kernel.dk> Date: Sun, 8 Oct 2006 19:05:38 +0200 From: Jens Axboe <jens.axboe@...cle.com> To: Christian <christiand59@....de> Cc: linux-kernel@...r.kernel.org Subject: Re: sluggish system responsiveness under higher IO load On Sun, Oct 08 2006, Christian wrote: > Am Freitag, 6. Oktober 2006 17:58 schrieb Paolo Ornati: > > On Sun, 13 Aug 2006 18:15:12 +0200 > > > > Matthias Dahl <mlkernel@...tal-soul.de> wrote: > > > Just let me know once you got them, so I can safely delete them again. > > > > > > At the moment, I am trying without preemption but for example doing a > > > untar kernel sources still results in sluggish system responsiveness. :-( > > > > I used to have this type of problem and 2.6.19-rc1 looks much better > > than 2.6.18. > > > > I'm using CONFIG_PREEMPT + CONFIG_PREEMPT_BKL, CFQ i/o scheduler > > and /proc/sys/vm/swappiness = 20. > > > Which change in the new kernel has made it better? I was following the lkml > very close and didn't see any change that could have fixed that problem. There is a substantial CFQ update, so it could be that. Or it could be something unrelated of course, I didn't check if eg the cpu scheduler changed much. Or vm :-) -- Jens Axboe - 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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