[x265] Less FPS

[Kalyan Goswami]

Hi Sunil,

>From the very first glace of your command line, I think you have missed the
--preset option. [https://x265.readthedocs.io/en/default/presets.html]. You
can try the ultrafast or superfast preset for higher performance. Regarding
the overview of different CLI options plz check the x265 documentation:
https://x265.readthedocs.io/en/default/cli.html

Thanks,
Kalyan Goswami, PhD
Video Architect @ MulticoreWare
http: <http://www.multicorewareinc.com/>//www.multicorewareinc.com
<http://www.multicorewareinc.com/>
+91 9884989331


On Thu, Feb 28, 2019 at 3:01 PM Mario *LigH* Rohkrämer <contact at ligh.de>
wrote:

> Hi Sunil.
>
> Just a general note: AVX512 is not certainly faster than AVX2 on every
> CPU model. There have been a few tests e.g. in the doom9 video forum. So
> don't expect miracles.
>
> Knowing your exact CPU model may help estimating if there can be a
> speedup, or if it is a model which may e.g. throttle too much to avoid
> overheating.
>
> But wait for more experienced replies than mine...
>
>
> Sunil Kumar schrieb am 28.02.2019 um 09:17:
> > Hi,
> > I am new to media encoding, I have heard that x265 is a very efficient
> > encoding tool on Intel's platform with avx512 enabled. But I am not able
> > to get good FPS with avx512 enable. Can you please help me improving the
> > performance?
> >
> > 1) I have tried with core pinning but it seems like using more cores is
> > not beneficial, even reducing the FPS, How can we decide the no. of
> > cores for best FPS in multi socket system.
> >
> > 2) Can suggest the command for efficient performance like the best
> > command line parameters or performance parameters (if we use preset then
> > it will compromise with the quality of video and same with CRF, help in
> > deciding best thing).
> >
> > 3) How can I run in parallel or in multi pass (2 pass) please give an
> > command example.
> > the command i was using is:
> >
> > ./x265 --input <video.yuv> --input-res 1920x1080 --fps 50 --output
> > out.hevc  --max-merge 3 --no-tskip --no-rect --frame-threads 16 --pools
> > "+,-" --bitrate 16000 --asm avx512
> >
> > how can we decide the --fps for input video? max-merge, no-tskip,
> > fram-threads etc.
> > Please give command so that it will help me out.
> > Thanks,
> > Sunil
> >
> >
> > _______________________________________________
> > x265-devel mailing list
> > x265-devel at videolan.org
> > https://mailman.videolan.org/listinfo/x265-devel
> >
>
>
> --
>
> Fun and success!
>
> Mario *LigH* Rohkrämer
> maito:contact at ligh.de
> _______________________________________________
> x265-devel mailing list
> x265-devel at videolan.org
> https://mailman.videolan.org/listinfo/x265-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/x265-devel/attachments/20190228/af60baa3/attachment-0001.html>