Messages in this thread | | | From | Gene Heskett <> | Subject | Re: Terrible interactivity with 2.6.0-t9-mm3 | Date | Sun, 16 Nov 2003 22:54:23 -0500 |
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On Sunday 16 November 2003 21:49, Andrew Morton wrote: >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-f >> >ix.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 ;)
In defense of this code, I ran -mm3 with the deadline elevator for about 3 days and was very happy with the interactivity. Now I've been running with the elevator=cfq for most of the day, and it also seems to be pretty responsive. The default as wasn't, at least for -mm2, and I haven't tried it yet for -mm3. Should I, and report back in a day or so so that you've got reports from an otherwise identical system to compare?
We need a test suite for this :)
-- Cheers, Gene AMD K6-III@500mhz 320M Athlon1600XP@1400mhz 512M 99.27% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2003 by Maurice Eugene Heskett, all rights reserved.
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