[theora-dev] Re: new trunk vs old trunk

[Fabio]

Seems that latest revision include some more MMX optimizations. These are my results using revision 12882. I am using a Dual Opteron 252 (2,6 GHz) on a 64 bit linux.

th-old     : http://svn.xiph.org/trunk/theora-old/ compiled
   with --disable-asm
th         : http://svn.xiph.org/trunk/theora/ compiled
   with --disable-asm
th-old-MMX : http://svn.xiph.org/trunk/theora-old/ (with MMX)
th-MMX     : http://svn.xiph.org/trunk/theora/ (with MMX)

Times are in seconds, new/old is the speed ratio (higher, better).

         frames  th-old  th  new/old th-old-MMX th-MMX new/old

Romalcc   25178   12,75  15,02  0,85    11,44    12,74  0,9
Elep_1024 15293	 167    144     1,16   131      113     1,16
Monday    55988   26,38  28,65  0,92    23,29    23,25  1
MSD_Oracl 42674   33,5   31,5   1,06    28,31    23,72  1,19
320x240     120    0,08   0,08  1        0,08     0,08  0,9
Videotest    49    0,12   0,22  0,54     0,12     0,2   0,61


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