flac dev - Mar 2014 - x86_64 SSE2/SSE41 optim not used

Hi Guys,

In stream_decoder.c when assigning lpc restore function,
only  IA32 processor benefits from SS2 and SSE4.1 optimization.

Shouldn't it be the case for x86_64 processor as well ?

Thanks,

-- 
Olivier TRISTAN

uvi.net
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Olivier Tristan wrote:
> In stream_decoder.c when assigning lpc restore function,
> only  IA32 processor benefits from SS2 and SSE4.1 optimization.
>
> Shouldn't it be the case for x86_64 processor as well ?
I tried, and it didn't make decoding faster. (And even SSE4.1 for IA-32
is... questionable)

OTOH, flac decoding is really very fast. It's very hard to make it even
faster.

oki doki

Flac decoding is already really fast indeed but as I'm streaming hundreds
of FLAC file from the HD in realtime,
I wouldn't mind some speed up if available :)


On Wed, Mar 12, 2014 at 5:40 PM, lvqcl <lvqcl.mail at gmail.com> wrote:
> Olivier Tristan wrote:
>
> > In stream_decoder.c when assigning lpc restore function,
> > only  IA32 processor benefits from SS2 and SSE4.1 optimization.
> >
> > Shouldn't it be the case for x86_64 processor as well ?
>
> I tried, and it didn't make decoding faster. (And even SSE4.1 for IA-32
> is... questionable)
>
> OTOH, flac decoding is really very fast. It's very hard to make it even
> faster.
> _______________________________________________
> flac-dev mailing list
> flac-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/flac-dev
>


-- 
Olivier TRISTAN
uvi.net
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