[MPlayer-dev-eng] [PATCH] SSE version of DCT64 for mp3lib

Rich Felker dalias at aerifal.cx
Thu Jun 22 18:43:12 CEST 2006


On Thu, Jun 22, 2006 at 06:19:52PM +0200, Guillaume Poirier wrote:
> Hi,
> 
> Rich Felker wrote:
> > On Thu, Jun 22, 2006 at 03:43:20PM +0200, Guillaume Poirier wrote:
> > 
> >>Hi,
> >>
> >>Zuxy Meng wrote:
> >>
> >>
> >>>Attached is dct64_sse, a replacement for dct64_MMX. About 60% faster
> >>>on my Pentium III (not very exciting, though:-)). Good for Intel users
> >>>because mp3lib only has dct64_3dnow and dct64_3dnowext.
> >>
> >>60% faster is not bad!
> > 
> > 
> > 60% faster than 0% cpu usage is still 0% cpu usage. :)
> > Seriously, even on my K6, mp3lib uses so little cpu time that I can't
> > even measure it with top (shows up at bottom of list as 0% :).
> 
> I don't know what happened to you Rich!!! Never before you went to
> Free Tibet would you have said such a thing. The Dalai Lama must have
> injected you some nano-probes, so now you've been assimilated and
> turned into "just one of these hippie guys". ;-))))))))))))
> 
> You should note that your comparison is not fair: your K6 uses 3dNow!
> optimizations, when Intel CPUs don't have any kind of optimizations.

ROTFL, I was not complaining about this, just commenting on how fast
mp3lib is. :)

Rich




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