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List:       haiku-development
Subject:    [haiku-development] Re: Optimizing Painter::_DrawBitmapBilinearCopy32
From:       Urias McCullough <umccullough () gmail ! com>
Date:       2009-06-16 0:32:12
Message-ID: 1e80d8750906151732lce924b3u437380024f72f14d () mail ! gmail ! com
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On Mon, Jun 15, 2009 at 4:53 PM, Christian
Packmann<Christian.Packmann@gmx.de> wrote:
> Adam K Kirchhoff - 2009-06-15 15:01 :
>>
>> CPU vendor ID: GenuineIntel
>> CPU:                   Intel(R) Xeon(TM) CPU 3.20GHz
>>  SIMD instructions: MMX SSE SSE-Integer SSE2 SSE3
>>
>>                    --  Results  --
>>
>>       Minimum    Average    Maximum
>> # 1:    459336     504028     883224  - 'C, original'
>> # 2:    537852     541143     560832  - 'C, precise'
>> # 3:    494304     495826     506484  - 'C, precise DIV'
>> # 4:    349416     349748     352692  - 'MMX/SSE'
>> # 5:    325248     337629     381876  - 'MMX/SSE optim-test'
>> # 6:    334044     336484     355212  - 'SSE2'
>> Skipped 'SSSE3', insufficient SIMD support
>>
>
> Can you give a bit more information on this system? It's a Pentium-IV based
> Xeon, but one of the later core revisions, I can't tell which. The
> performance in comparison to the P4 result posted by Urias is astonishing.

FWIW, I have other P4 variants I can test with - including some more
modern variants. Tonight I'll use a USB stick to test my wife's P4
Prescott 3.0ghz and tomorrow I'll try to pop it into an even faster P4
machine here at work ;)

I also have a P4 Celeron 2.0ghz laptop I can test with... are these
potentially useful?

- Urias



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