Plex performance

Discussion in 'GLK-UC2X' started by clr_thx, Jan 15, 2019.

  1. clr_thx

    clr_thx New Member

    Plex on the GLK-UC2X is not able to play a 4k (HEVC, 10bit, mkv) film smoothly. Bandwidth to the GLK is definitely not the problem. Hardware acceleration is enabled. Plex on Directplay, so no transcoding. Server is on a different PC (i7-7700k).

    Any suggestions?
     

    Attached Files:

  2. Ken

    Ken Administrator Staff Member

    1.) Have you tried this?
    https://www.pepper-forum.com/index.php?threads/hevc-video-extensions-app-for-windows-10.7/

    2.) And is the Plex app from the Windows Store? Apps from Windows store have better decoder support.
     
  3. clr_thx

    clr_thx New Member

    Tried, but more issues. Also app forces server to transcode for no reason. Plex app last update is from somewhere in 2017, so it seems that it is not being maintained anymore.
    I use Plex Media Player. Seeing several differences between behavior on i7-7700k and N4100 (more than would be justified by performance difference). See attachments. Any help is appreciated!
     
  4. Ken

    Ken Administrator Staff Member

    We tried to setup Plex here but it's quite difficult to get the server side working...
    Would Kodi be a better choice in terms of decoding? It's preloaded in our Windows OS image.
     
  5. clr_thx

    clr_thx New Member

    Thanks for the effort! In my experience Plex Media Server setup should a peace of cake, so it would help a lot if you could get that working. Kodi certainly is an option. The point is that I have been running Plex for a long long time and bought the GLK specifically to that end. I'm not giving up yet :)

    In Plex Settings, I switched OpenGL off. Then sync is ok, PMP CPU load drops to 12%, but now the GPU goes to 100% (55 for PMP and 45 for Desktop Window Manager). Result is video follows audio, but video very choppy.
     
    Last edited: Jan 19, 2019
  6. Paul

    Paul New Member

    Did you try what the response is in the Plex desktop app? That one might be more updated than the Media Player app.

    I can't paste the link (yet) : app -dot- plex -dot- tv
     
  7. clr_thx

    clr_thx New Member

    I'm not exactly sure what you mean with 'desktop app', but Plex Media Player is the superior option. Alternatives are the Store app that has not being updated since 2017 and browser based which is limited in serveral ways.
     
  8. Paul

    Paul New Member

    I mean the browser version of Plex, unfortunately I cannot paste a hyperlink here, but check out app . plex . tv
     
  9. Richard

    Richard New Member

  10. clr_thx

    clr_thx New Member

    Thanks. Far better than PMP, but still choppy at times. CPU and GPU both at nearly 100%.
    But overall a browser solution is not a viable option anyway.....no support for multichannel sound.
     
  11. Ken

    Ken Administrator Staff Member

  12. Ken

    Ken Administrator Staff Member

    Also, dual channel DDR memory surely performs better for decoding but I'm not sure if this could solve the problem of Plex.

    For example, streaming Netflix 4K smoothly needs dual channel RAM.
     
  13. clr_thx

    clr_thx New Member

    That is for the server side if transcoding is needed. The whole idea of a 4k suitable media pc is to be able to process the actual 4k content.
    Don't get me wrong, I'm not saying that the GLK is not a capable device. So far the marriage with Plex is not a succesful one......
     
  14. clr_thx

    clr_thx New Member

    Sorry, I don't understand. So the GLK is not able to do Netflix 4K?
     
  15. Richard

    Richard New Member

    Yes Netflix runs 4K on GLK-UC2X.
    Only Ken suggest to put a extra DDR4 SODIMM 4GB so you have 2x 4Gb dual channel in your GLK-UC2X.

    Verstuurd vanaf mijn SM-N950F met Tapatalk
     
  16. clr_thx

    clr_thx New Member

    Clear, thanks!
     
  17. Ken

    Ken Administrator Staff Member

    Dual channel gives more headroom for the GPU (decoder), it wouldn't reach 100% as easy as single channel.