[Ffmpeg-devel] Re: fastmemcpy in ffmpeg

[Gustavo Sverzut Barbieri]

On 9/25/06, Gunnar von Boehn <gunnar at greyhound-data.com> wrote:
> Hi Ronald,
>
> Ronald S. Bultje wrote:
> > Hi,
> >
> > On Mon, 25 Sep 2006, Gunnar von Boehn wrote:
> >
> >>Just by
> >>adding one prefetch instruction to the normal Linux memcpy you can speed
> >>it up a lot 50%.
> >
> > [..]
> >
> > So why don't you submit such work for inclusion in glibc? That way,
> > everybody profits!
>
> Yes thats right.
> Well, I did send my humble contributions to IBM to be included into
> their proposed patches for the glibc. But I'm not sure if they have
> commited anything yet.

I've checked GLibC bugzilla and nothing was reported there, not even
relevant closed bugs where found.

Maybe we should report a bug there and check why they've opted to not
use an optimized version?

 http://www.gnu.org/software/libc/bugs.html

-- 
Gustavo Sverzut Barbieri
--------------------------------------
Jabber: barbieri at gmail.com
   MSN: barbieri at gmail.com
  ICQ#: 17249123
 Skype: gsbarbieri
Mobile: +55 (81) 9927 0010
 Phone:  +1 (347) 624 6296; 08122692 at sip.stanaphone.com
   GPG: 0xB640E1A2 @ wwwkeys.pgp.net