llvm dev - Sep 2009 - [LLVMdev] FYI: Phoronix GCC vs. LLVM-GCC benchmarks

screw that site, its useless info run by a linux gnu zealot.

2009/9/14 Chris Lattner <clattner at apple.com>:
> On Sep 14, 2009, at 3:20 AM, Stefano Delli Ponti wrote:
>
>> http://www.phoronix.com/scan.php?
>> page=article&item=apple_llvm_gcc&num=1
>
> Unfortunately, they don't specify what flags are used, what
> architecture is compiled for etc.  It's entirely possible that they
> are accidentally compiling the llvm-gcc binaries for x86-32 and the
> gcc ones for x86-64 for example.
>
> If anyone has time to try to reproduce this, it would definitely be
> useful!
>
> -Chris
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>


-- 
-- 
Edward O'Callaghan
http://www.auroraux.org/
eocallaghan at auroraux dot org

I wouldn't be so quick to dismiss the numbers. For example, I know  
llvm-gcc does significantly worse on LAME. On the other hand, the  
dhrystone, md5, and blowfish numbers are out of line with my  
expectation.

It would be nice if someone can perform the tests independently and  
file bugzilla reports.

Thanks,

Evan

On Sep 14, 2009, at 12:01 PM, Edward O'Callaghan wrote:
> screw that site, its useless info run by a linux gnu zealot.
>
> 2009/9/14 Chris Lattner <clattner at apple.com>:
>> On Sep 14, 2009, at 3:20 AM, Stefano Delli Ponti wrote:
>>
>>> http://www.phoronix.com/scan.php?
>>> page=article&item=apple_llvm_gcc&num=1
>>
>> Unfortunately, they don't specify what flags are used, what
>> architecture is compiled for etc.  It's entirely possible that they
>> are accidentally compiling the llvm-gcc binaries for x86-32 and the
>> gcc ones for x86-64 for example.
>>
>> If anyone has time to try to reproduce this, it would definitely be
>> useful!
>>
>> -Chris
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>
>
>
> -- 
> -- 
> Edward O'Callaghan
> http://www.auroraux.org/
> eocallaghan at auroraux dot org
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

2009/9/14 Edward O'Callaghan <eocallaghan at
auroraux.org>:
> screw that site, its useless info run by a linux gnu zealot.
Well, being a Linux GNU zealot doesn't invalidate numbers. What does
invalidate is that he has no numbers!

He just fired a few applications and counted the seconds, this is
utterly pointless. No reference to how many times he ran, standard
deviations, possible effects of OS cache, compilation parameters, etc,
etc. There simply isn't anything in there. It even lack text in
between the charts, a conclusion, and... well... everything.

"Ignore that site", would also be more polite... ;)

cheers,
--renato

Reclaim your digital rights, eliminate DRM, learn more at
http://www.defectivebydesign.org/what_is_drm

On Mon, Sep 14, 2009 at 12:23 PM, Renato Golin <rengolin at
systemcall.org>wrote:
> 2009/9/14 Edward O'Callaghan <eocallaghan at auroraux.org>:
> > screw that site, its useless info run by a linux gnu zealot.
>
> Well, being a Linux GNU zealot doesn't invalidate numbers. What does
> invalidate is that he has no numbers!
>
> He just fired a few applications and counted the seconds, this is
> utterly pointless. No reference to how many times he ran, standard
> deviations, possible effects of OS cache, compilation parameters, etc,
> etc. There simply isn't anything in there. It even lack text in
> between the charts, a conclusion, and... well... everything.
>
> "Ignore that site", would also be more polite... ;)
>
Nevertheless, the site has a large audience. From a publicity perspective,
it may be worthwhile to work with the author to get more representative
numbers.

Keir


>
> cheers,
> --renato
>
> Reclaim your digital rights, eliminate DRM, learn more at
> http://www.defectivebydesign.org/what_is_drm
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
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