[FFmpeg-devel] [PATCH] More H.264 decoding speed tweaks

Michael Niedermayer michaelni
Sat Jun 21 14:04:50 CEST 2008

On Sat, Jun 21, 2008 at 08:16:37AM +0300, Jan Knutar wrote:
> On Saturday 21 June 2008, Jason Garrett-Glaser wrote:
> > Attached is just the write-combining changes in a single patch with
> > (I hope) no cosmetic issues.
> Some quick time-to-decode tests give me 0.70% - 0.90% gain on sempron64 
> and 0.30 - 0.36% loss on P3.

which gcc version and what happens without the uint64 ?
Also the actual times or mean+std deviation are always prefered over 
"simplifed" speed change claims.

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.
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