[XviD-devel] Question about bvop decoding

[Christoph Lampert]

On Tue, 20 Jul 2004, Edouard Gomez wrote:
> Hmm i don't have such a profile at all...
> See:
> http://ed.gomez.free.fr/vrac/profile-gprof.txt
> http://ed.gomez.free.fr/vrac/profile-oprofile.txt

Hi GomGom,

I couldnt't get oprofile to run on my kernel, but have you tried using the 
RETIRED_INSNS counters instead of CPU_CLK_UNHALTED? The profiling-FAQ I 
have suggests that for Athlons. 

Btw, with Intel ICC I get a profile similar to gcc's. Maybe we should come 
up a different way of measuring the routines' speed. Has anyone tried 
Intel VTune?

   %       self     cum 
 18.81      1.71     1.71                    yv12_to_yv12_xmm
 14.96      3.07     1.36                    transfer8x8_copy_3dne
 13.09      4.26     1.19                    decoder_bframe
  9.35      5.11     0.85                    interpolate8x8_halfpel_v_3dne
  7.81      5.82     0.71                    interpolate8x8_halfpel_hv_3dne
  5.94      6.36     0.54                    interpolate8x8_halfpel_h_3dne
  4.07      6.73     0.37                    get_inter_block_h263
  3.41      7.04     0.31                    _intel_fast_memset.A
  3.41      7.35     0.31                    interpolate8x8_avg2_mmx
  3.08      7.63     0.28                    idct_3dne
  2.64      7.87     0.24                   decoder_bf_interpolate_mbinter
  2.42      8.09     0.22                    decoder_pframe
  2.20      8.29     0.20                    decoder_mbinter

chl