[MPlayer-dev-eng] [RFC] disable fastmemcpy on x86-64 by default

[Reimar Döffinger]

Hello,
On Sun, May 27, 2007 at 07:39:20PM +0200, Guillaume POIRIER wrote:
> On 5/27/07, Reimar D?ffinger <Reimar.Doeffinger at stud.uni-karlsruhe.de> wrote:
> > since SSE is part of the x86-64 architecture, at least glibc makes use
> > of it for its memcpy and some quick (and imprecise) tests indicate that
> > it's at least not slower.
> > So what do you think about attached patch? Can someone do more concise
> > benchmarks?
> 
> What would be a good benchmark? A very HD video sample like Apple's?

Judging by the synthetic benchmarks I had running results might differ
quite a bit depending on resolution.

> What hardware would exhibit more how fastmemcpy affects speed?
> I have an AMD64 2.4Ghz /s754 with a Geforce 6200LE AGP, if it matters.

I don't really know, I'm interested to get some statistics...

Greetings,
Reimar Döffinger