x264 --threads 2 --crf 20 -b3 -r1 -m3 -t0 -8
CPU: Core 2, speed 2400.75 MHz (estimated)
Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000
samples  %        symbol name
2155684  16.7003  pixel_satd_*_mmx
1816710  14.0743  pixel_sad_*_mmx
819444    6.3483  pixel_avg_*_mmx
675700    5.2347  me_search_ref
493839    3.8258  pixel_sa8d_*_mmx
477614    3.7005  predict_intra_*
386837    2.9969  hpel_filter_mmx
337768    2.6167  dct_*_mmx
307622    2.3832  frame_init_lowres
302414    2.3428  get_ref_mmx
296038    2.2935  mc_chroma_mmx
288773    2.2372  refine_subpel
284917    2.2073  cabac_encode_decision
280814    2.1755  macroblock_cache_load
272193    2.1088  mb_analyse_intra_*
249413    1.9322  block_residual_write_cabac
248528    1.9254  macroblock_cache_save
239293    1.8539  mb_predict_mv_*
218882    1.6957  mc_copy_*_mmx
215115    1.6665  dequant_*_mmx
213712    1.6557  zigzag_scan_*
205101    1.5889  macroblock_encode
167681    1.2991  plane_copy_mmx
163885    1.2696  frame_deblock_row
160222    1.2413  mb_analyse_inter_*
157446    1.2197  idct_*_mmx
134216    1.0398  macroblock_analyse
123591    0.9575  macroblock_probe_skip
123189    0.9544  quant_*_mmx
122915    0.9523  mb_mc_*
115551    0.8953  deblock_*_mmx
107384    0.8319  slicetype_mb_cost
93534     0.7246  mb_encode_8x8_chroma
79385     0.6150  deblock_*_c
75653     0.5861  predict_8x8_filter
68604     0.5315  macroblock_write_cabac
60181     0.4662  mc_luma_mmx
52160     0.4041  analyse_update_cache
43143     0.3342  mb_encode_i*
33294     0.2579  slices_write
32089     0.2486  mb_predict_intra4x4_mode
29736     0.2304  cabac_mb_mvd
22062     0.1709  prefetch_fenc_mmx
21621     0.1675  plane_expand_border
17903     0.1387  prefetch_ref_mmx
15300     0.1185  cabac_encode_bypass
12925     0.1001  mb_load_mv_direct8x8
12198     0.0945  cabac_mb_type
10696     0.0829  cabac_encode_terminal
6640      0.0514  .plt
6416      0.0497  ratecontrol_qp
6327      0.0490  cabac_mb_skip
6205      0.0481  cabac_mb_intra4x4_pred_mode
5187      0.0402  me_refine_qpel
4975      0.0385  slicetype_frame_cost
4682      0.0363  nal_encode
3963      0.0307  cabac_mb_intra_chroma_pred_mode
3162      0.0245  mb_transform_8x8_allowed
3081      0.0238  mb_cache_mv_*
2972      0.0230  cabac_mb_type_intra
1895      0.0147  cabac_encode_ue_bypass
