[FFmpeg-devel] [PATCH 04/10] x86: synth filter float: implement SSE2 version

[Michael Niedermayer]

On Fri, Feb 14, 2014 at 04:00:48PM +0000, Christophe Gisquet wrote:
> Timings for Arrandale:
>           C    SSE
> win32:  2108   334
> win64:  1152   322
> 
> Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
> the jmp destination being aligned.
> 
> Unrolling for ARCH_X86_64 is a 20 cycles gain.

applied

thanks

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is dangerous to be right in matters on which the established authorities
are wrong. -- Voltaire
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