On 2016-11-29 15:30, Carl Eugen Hoyos wrote: > 2016-11-29 12:52 GMT+01:00 James Darnley <jdarn...@obe.tv>: >> sse2: >> complex: 4.13x faster (1514 vs. 367 cycles) >> simple: 4.38x faster (1836 vs. 419 cycles) >> >> avx: >> complex: 1.07x faster (260 vs. 244 cycles) >> simple: 1.03x faster (284 vs. 274 cycles) > > What are you comparing?
I stuck a timer around the call to the h264dsp function in libavcodec/h264_mb_template.c. Using STOP_TIMER(__func__) let me get a different message for each function created. The two functions my code was called from were hl_decode_mb_simple_16 and hl_decode_mb_complex. The video being decoded was one from fate concatenated together several times. The AVX comparison is it versus SSE2. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
