[x264-devel] Re: [patch] SSE2 pixel routines - new patch!

[Robert Swain]

Hello,

Some results from my Athlon 64 3000+ Venice core:

http://www.swains.plus.com/x264/Athlon.64.Venice.3000+.htm
http://www.swains.plus.com/x264/Athlon.64.Venice.3000+.v4.txt

I would propose that if this were to be committed some conditions for SSE2 
use are put in place to avoid the use of the non-SSD functions so that no 
slowdown is incurred.

Regards,
Robert Swain (superdump)

----- Original Message ----- 
From: "Alexander Izvorski" <aizvorski at gmail.com>
To: <x264-devel at videolan.org>
Sent: Wednesday, July 27, 2005 6:25 AM
Subject: [x264-devel] Re: [patch] SSE2 pixel routines - new patch!


Hello,

I tried to post a new SSE2 patch to the list but I think the message
is not getting through (possibly the attachment is too large?).  The
patch is here:

http://www.geocities.com/x264hack/sse2-pixel-routines-v4.diff.txt

and the message I had sent originally is below.  Sorry if it ends up
posting twice.

Regards,
-Alex Izvorski


On 7/26/05, Alexander Izvorski <aizvorski at gmail.com> wrote:
> Hello,
>
> The SSE2 patch is getting there, I'd like to propose this version as a
> candidate to be committed.    It is the same speed or slightly slower
> on Athlon64, but noticeably faster on P4 or Xeon.  Some benchmark
> results are here: http://www.firstmiletv.nl/vlc/x264/ (courtesy of
> Trax).
>
> It should be theoretically possible to speed it up on the Athlon64 as
> well but I don't expect to make any progress on that without having
> such a box available.  It would be nice to have it off by default on
> Athlon64 until it is actually faster there as well, but I'm not sure
> how to best do that.
>
> I reorganized it into a separate file, would you prefer that or would
> you rather have it in the same file?
>
> Regards,
> -Alex Izvorski
>
>
>

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