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Date: Thu, 28 Feb 2008 20:18:24 +0100 From: Ingo Molnar <mingo@...e.hu> To: linux-kernel@...r.kernel.org, "Carlos R. Mafra" <crmafra2@...il.com> Subject: Re: Interactivity issue in 2.6.25-rc3 * Carlos R. Mafra <crmafra2@...il.com> wrote: > I want to report a bad interactivity which happened in my desktop > running the latest kernel (2.6.25-rc3-00081-g7704a8b). > > I tried to play 'flightgear' and the desktop became _very_ slow while > flightgear was "loading scenery objects" (a task which never finished > and I could not play it). > > The desktop is a P4 @ 3.0 GHz, 512MB, with the nv graphics driver. yes, but this means you run the soft-3D driver under Xorg, right? That is known to starve its clients. The stats you sent show no worse than a few tens of msecs delays caused by CPU scheduling itself: mrxvt (3730, #threads: 1) se.wait_max : 18.679129 so the scheduler kept things within the ~40 msecs default latency target: .sysctl_sched_latency : 40.000000 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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