Re: [BENCHMARK] 2.5.43-mm2 with contest

[Con Kolivas <conman@kolivas.net>]

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On Thursday 17 Oct 2002 6:01 pm, Andrew Morton wrote:
> Con Kolivas wrote:
> > Here are the updated benchmarks with contest v0.51
> > (http://contest.kolivas.net) showing the change from -mm1 to -mm2. Other
> > results removed for clarity.
> >
> > noload:
> > Kernel [runs]           Time    CPU%    Loads   LCPU%   Ratio
> > 2.4.18 [3]              71.8    93      0       0       1.01
> > 2.5.43 [2]              74.6    92      0       0       1.04
> > 2.5.43-mm1 [4]          74.9    93      0       0       1.05
> > 2.5.43-mm2 [2]          73.4    93      0       0       1.03
>
> Would be interesting to run
>
> 	blockdev --setra 1024 /dev/hdXX
>
> here.  We're getting more idle time with 2.5 and that can only
> be due to disk wait - the IO scheduler changes.  This might make a
> small difference.

Well that isn't it (b is with ra 1024):

2.5.43-mm2 [2]          73.4    93      0       0       1.03
2.5.43-mm2b [3]         76.4    94      0       0       1.07

>
> > ...
> > Removal of per-cpu pages patch does not seem to have been detrimental to
> > contest benchmarks at least - perhaps this is responsible for the noload
> > being better now?
>
> Well that code is still there.  I'd expect a very small benefit from it
> in this testing.

Sorry. Misunderstood your announce message.
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