Re: [CFT][RFC] HT scheduler

Rhino
2003-12-11T08:02:15Z

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On Thu, 11 Dec 2003 18:24:20 +1100
Nick Piggin <piggin@cyberone.com.au> wrote:

>
>
> Nick Piggin wrote:
>
> > http://www.kerneltrap.org/~npiggin/w26/
> > Against 2.6.0-test11
>
>
> Oh, this patchset also (mostly) cures my pet hate for the
> last few months: VolanoMark on the NUMA.
>
> http://www.kerneltrap.org/~npiggin/w26/vmark.html
>
> The "average" plot for w26 I think is a little misleading because
> it got an unlucky result on the second last point making it look
> like its has a downward curve. It is usually more linear with a
> sharp downward spike at 150 rooms like the "maximum" plot.
>
> Don't ask me why it runs out of steam at 150 rooms. hackbench does
> something similar. I think it might be due to some resource running
> short, or a scalability problem somewhere else.

i didn't had the time to apply the patches (w26 and C1 from ingo )
on a vanilla t11, but i merged them with the wli-2,btw this one has really put
my box on steroids ;) .

none of them finished a hackbench 320 run, the OOM killed all of my
agetty's logging me out. the box is a 1way p4(HT) 1gb of ram
and no swap heh.

hackbench:

sched-rollup-w26 sched-SMT-2.6.0-test11-C1

50 4.839 50 5.200
100 9.415 100 10.090
150 14.469 150 14.764

time tar -xvjpf linux-2.6.0-test11.tar.bz2:

sched-rollup-w26 sched-SMT-2.6.0-test11-C1

real 43.396 real 23.136
user 27.608 user 20.700
sys 4.039 sys 4.344

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