Re: [FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-13 Thread James Darnley
On 2017-11-10 22:13, James Darnley wrote: > The IRC log should appear at the link below. >> https://lists.ffmpeg.org/pipermail/ffmpeg-devel-irc/2017-November/004651.html Of course when I try to predict what number an email will get based on the past few it ends up being out of order. The

Re: [FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-13 Thread Martin Vignali
2017-11-10 22:13 GMT+01:00 James Darnley : > On 2017-11-10 14:32, James Darnley wrote: > > I mentioned previously that using ZMM registers will cause the CPU to > > reduce its frequency. > > > > Gramner said on IRC that a user should spend 20-30% of time in > > AVX-512/ZMM code

Re: [FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-10 Thread James Darnley
On 2017-11-10 14:32, James Darnley wrote: > I mentioned previously that using ZMM registers will cause the CPU to > reduce its frequency. > > Gramner said on IRC that a user should spend 20-30% of time in > AVX-512/ZMM code for it to be a net gain in speed. > From ffmpeg-devel IRC on 2017-10-26

Re: [FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-10 Thread James Darnley
On 2017-11-09 20:42, Martin Vignali wrote: > I doesn't want to block this patch, but > like you say (in your previous version), that this version is not faster, > i'm not sure, it's interesting to apply it. > You already made "real" avx512 version for other funcs, in order to check > the rest of

Re: [FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-09 Thread Martin Vignali
2017-11-09 12:58 GMT+01:00 James Darnley : > --- > libavcodec/x86/v210enc.asm| 5 + > libavcodec/x86/v210enc_init.c | 7 +++ > 2 files changed, 12 insertions(+) > > diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm > index 965f2bea3c..5068af27f8

[FFmpeg-devel] [PATCH 08/11] avcodec/v210enc: add AVX-512 10-bit line pack function

2017-11-09 Thread James Darnley
--- libavcodec/x86/v210enc.asm| 5 + libavcodec/x86/v210enc_init.c | 7 +++ 2 files changed, 12 insertions(+) diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm index 965f2bea3c..5068af27f8 100644 --- a/libavcodec/x86/v210enc.asm +++ b/libavcodec/x86/v210enc.asm @@