Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: Terrible interactivity with 2.6.0-t9-mm3 | From | "Ronny V. Vindenes" <> | Date | Mon, 17 Nov 2003 13:11:32 +0100 |
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Andrew Morton <akpm@osdl.org> writes:
> Gawain Lynch <gawain@freda.homelinux.org> wrote: > > > > On Mon, 2003-11-17 at 08:42, Andrew Morton wrote: > > > Two things to try, please: > > > > > > a) Is the problem from Linus's tree? Try 2.6.0-test9 plus > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test9/2.6.0-test9-mm3/broken-out/linus.patch > > > > > > b) The only significant scheduler change in mm3 was > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test9/2.6.0-test9-mm3/broken-out/context-switch-accounting-fix.patch > > > > > > So please try -mm3 with the above patch reverted with > > > > > > patch -R -p1 < context-switch-accounting-fix.patch > > > > > > > Hi Andrew, > > > > This is also easily reproducible here with just a kernel compile. > > > > I have tried both a) and b) with b) not changing anything, but a) seems > > to work... Anything more to try? > > > > Your report has totally confused me. Are you saying that the jerkiness is > caused by linus.patch? Or not? Pleas try again ;) >
I've found that neither linus.patch nor context-switch-accounting-fix.patch is causing the problem, but rather acpi-pm-timer-fixes.patch & acpi-pm-timer.patch
With these applied my cpu (athlon64) is detected as 0.0Mhz, bogomips drops to 50% and anything cpu intensive destroys interactivity. Revert them and performance is back at -mm2 level.
-- Ronny V. Vindenes <s864@ii.uib.no>
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