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SubjectRe: [PATCH]O18.1int
Date
On Sun, 24 Aug 2003 08:03, Voluspa wrote:
> On 2003-08-23 12:21:14 Con Kolivas wrote:
> > On Sat, 23 Aug 2003 19:08, Thomas Schlichter wrote:
> >> On Saturday 23 August 2003 07:55, Con Kolivas wrote:
>
> [...]
>
> >> First of all... Your interactive scheduler work is GREAT! I really
> >> like it...!
>
> [...]
>
> > P.S. All this may be moot as it looks like I, or someone else, may
> > have to start again.
>
> If you do, please remember this report. Quick summary: All problem areas
> I've seen are completely resolved - or at least to a major extent.
> Blender, wine and "cp -a".
>
> Andrew Mortons red flag was a good incentive to run my tests on a
> pure 2.6.0-test4 and write down the outcome. Adding the O18.1int after
> this really stand out.

Thanks for extensive testing and report.

I didn't want to make a fuss about these O18 patches because I've been excited
by changes previously that weren't as good as I first thought.

My mistake after O15 was that my patches made priority inversion (always
there) much much worse at times, and I went looking for a generic solution to
priority inversion which has destroyed better coders than I. Instead I went
looking for why it was much worse on O15+ and found two algorithm bugs. Much
better to kill off bugs than hide them under the carpet.

Furthermore it doesn't look like it's my fault for the drop in performance on
big SMP after all which is good news.

Con

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