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Re: GCC trunk SPEC2000 performance

From: Jan Hubicka <jh at suse dot cz>
To: Dale Johannesen <dalej at apple dot com>
Cc: David Edelsohn <dje at watson dot ibm dot com>,Mark Mitchell <mark at codesourcery dot com>, gcc at gcc dot gnu dot org,Geoff Keating <geoffk at geoffk dot org>
Date: Thu, 20 Jun 2002 18:56:04 +0200
Subject: Re: GCC trunk SPEC2000 performance
References: <200206200243.WAA23358@makai.watson.ibm.com> <2D6A2373-846E-11D6-B669-003065C86F94@apple.com>

> 
> On Wednesday, June 19, 2002, at 07:43 PM, David Edelsohn wrote:
> 
> >	To avoid the argument that GCC 3.2 performance regressions were
> >reported too late in the release cycle, does anyone know why the graphs on
> >Andreas Jaeger's SPEC CPU2000 performance tracking page show:
> 
> Could the regression tester run some performance tests?  It would be
> nice to catch these things early.

It is dificult to figure out what is perofmrance regression and what is
just statistical mistake.
It is possible to look at the graphs and see the gaps, as the runs are
done daily it gives quite good hint to find the offending patch.
Unfortunately no one is doing this regularry at the moment.

Honza

References:
- GCC trunk SPEC2000 performance
  - From: David Edelsohn
- Re: GCC trunk SPEC2000 performance
  - From: Dale Johannesen

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