Re: [BENCHMARK] 2.5.61-mm1 +/- as or cfq with contest

From: Jens Axboe (axboe@suse.de)
Date: Sun Feb 16 2003 - 04:59:56 EST


On Sun, Feb 16 2003, Con Kolivas wrote:
> On Sun, 16 Feb 2003 08:51 pm, Jens Axboe wrote:
> > On Sun, Feb 16 2003, Con Kolivas wrote:
> > > Here are contest (http://contest.kolivas.org) results with osdl
> > > (http://www.osdl.org) hardware for 2.5.61-mm1 with either the as i/o
> > > scheduler or the cfq scheduler.
> > >
> > > io_load:
> > > Kernel [runs] Time CPU% Loads LCPU% Ratio
> > > 2.5.60-mm1 3 112 67.0 15.7 7.1 1.42
> > > 2.5.61 2 143 52.4 32.9 13.3 1.81
> > > 2.5.61-mm1 2 634 12.5 257.3 24.6 7.83
> > > 2.5.61-mm1cfq 3 397 19.6 123.3 18.1 5.03
> >
> > These loo fishy, could be some other interaction. I'm consistently
> > beating 2.5.60-mm1/2.5.61 on io_load here, but that is 2.5.61 base and
> > not 2.5.61-mm1 base. Could be something odd happening there.
>
> I dont think they're fishy - taken in the mm1 context -. I have tested cfq3a
> without mm1 and it does beat the baseline. See a previous email I posted with
> it.

I didn't mean that you have done something fishy, but that there's a
fishy interaction between -mm + CFQ :)

-- 
Jens Axboe

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