[Ffmpeg-devel] [PATCH] put_mpeg4_qpel16_h_lowpass altivec, take 2

[Guillaume POIRIER]

Hi,

On 11/26/06, Alexander Strange <astrange at ithinksw.com> wrote:
>
> On Nov 26, 2006, at 1:38 PM, Guillaume Poirier wrote:
>
> >
> > On Nov 26, 2006, at 5:23 , Luca Barbato wrote:
> >
> >> Brian Foley wrote:
> >>>
> >>> I guess I should look at it with simg4 at some point, but there
> >>> are much
> >>> more CPU intensive functions that could be sped up first.
> >>
> >> try using valgrind callgrind and oprofile if you could ^^;
> >
> > valgrind is supported and works on PPC? I didn't know that. Does it
> > provide the same amount of features that x86 port has?
> >
> > Guillaume
>
> On Linux, yes (although I don't know if AltiVec instructions remain
> as AltiVec instructions). It doesn't run on Darwin at all.
>
> I suspect Shark and simg4 are probably as good or better for
> profiling anyway.

Well, one thing that no Apple CHUD tools seem to be able to do is
tracking down access to un-initialized memory, which valgrind does to
the best of my knowledge.

Guillaume
-- 
An association of men who will not quarrel with one another is a thing
which has never yet existed, from the greatest confederacy of nations
down to a town meeting or a vestry.
 -- Thomas Jefferson
(when interviewed about MPlayer ML flamewars)
http://www.brainyquote.com/quotes/quotes/t/thomasjeff157207.html