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Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch

From: Mark Mitchell <mark at codesourcery dot com>
To: "H. J. Lu" <hjl at lucon dot org>
Cc: Daniel Berlin <dberlin at dberlin dot org>, Richard Guenther <richard dot guenther at gmail dot com>, Vladimir Sysoev <vladimir dot sysoev at gmail dot com>, dberling at dberling dot org, gcc at gcc dot gnu dot org
Date: Mon, 19 Feb 2007 15:59:42 -0800
Subject: Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
References: <275bfc6c0702170235k3caee9b8l1ad486dba86bfe76@mail.gmail.com> <20070217225805.GA11378@lucon.org> <4aca3dc20702180917y361bbb84gca497870182b91d@mail.gmail.com> <84fc9c000702181438n1ad8165bs31ddd8a31d7ec7b5@mail.gmail.com> <4aca3dc20702181515yfa1216elb25417365cceaff0@mail.gmail.com> <45DA2FBC.8020607@codesourcery.com> <20070219234837.GA18476@lucon.org>

H. J. Lu wrote:

> FP performance regressions of the recent GCC 4.2 (revision 120817)
> compiler against September GCC 4.2 (revision 116799)
> 	410.bwaves		-6.3%
> 	433.milc		-7.0%
> 	437.leslie3d	-25.4%
> 	450.soplex		-3.9%
> 	459.GemsFDTD	-18.3%
> 	465.tonto		-2.5%
> 	470.lbm		-4.1%
> 	481.wrf		-2.7%

What does that translate to in terms of overall score?

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713

Follow-Ups:
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Grigory Zagorodnev

References:
- 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Vladimir Sysoev
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: H. J. Lu
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Daniel Berlin
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Richard Guenther
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Daniel Berlin
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: Mark Mitchell
- Re: 40% performance regression SPEC2006/leslie3d on gcc-4_2-branch
  - From: H. J. Lu

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