[MPlayer-dev-eng] Re: Re: PATCH [0/12] CoreAVCDecoder support

[Loren Merritt]

On Sun, 18 Feb 2007, Bernd Ernesti wrote:
> On Sun, Feb 18, 2007 at 01:42:02AM +0100, Michael Niedermayer wrote:
>
>> maybe someone should try benchmarking h264.c compiled with -Os ?
>
> Same file used for benchmarking (harry_potter_goblet-tlr2_h720p.mov):
>
> -Os (h264idct.c and h264.c, all other files were -04):

h264idct.c doesn't matter, all of the functions in it have mmx equivalents.


Athlon64 3800 (2.4GHz, 128k L1, 512k L2)
gcc-4.1.1
harry_potter_goblet-tlr2_h720p.mov

changing compile flags for h264.c,
-O2  26.04 +/- .03 sec
-O3  26.17 +/- .02
-Os  28.13 +/- .07

--Loren Merritt