[FFmpeg-devel] [PATCH 4/5] x86: sbrdsp: implement SSE qmf_deint_bfly
Michael Niedermayer
michaelni at gmx.at
Mon Apr 8 02:36:02 CEST 2013
On Sun, Apr 07, 2013 at 08:20:33PM +0000, Christophe Gisquet wrote:
> From 312 to 89/68 (sse/sse2) cycles on Arrandale and Win64.
> Sandybridge: 68/47 cycles.
>
> Having a loop counter is a 7 cycle gain.
> Unrolling is another 7 cycle gain.
> Working in reverse scan is another 6 cycles.
> ---
> libavcodec/x86/sbrdsp.asm | 42 ++++++++++++++++++++++++++++++++++++++++++
> libavcodec/x86/sbrdsp_init.c | 4 ++++
> 2 files changed, 46 insertions(+)
applied
thanks
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
No great genius has ever existed without some touch of madness. -- Aristotle
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20130408/29e3b677/attachment.asc>
More information about the ffmpeg-devel
mailing list