Bad performance on the Intel j3455 cpu

1st Official Post

    Hello.

    I had an Intel j3455 box laying around. And decided to use that one instead of my rpi4 for libreelec. But the performance is terrible.

    I use kodi Plex Connect to watch my movies from my server.

    My rpi starts a movie in 20s. But the j3455 does more than a minute to start. It also stutters on my j3455. The movie is just a h264 1080p movie

    I just did a clean install of the latest kodi and latest kodi plex connect.

    The passmark score of the j3455 is more than double of the rpi4. Is there something I'm missing? Do I need to do more configuration for x86?

    Thanks in advance

  • Go to Best Answer
    • Official Post

    FYI, "latest" is not a version number. We currently have stable releases as well as (nightly) test builds, so 'latest' can be something else than you indicate.

    Also try bypassing the Plex route, and play files directly/locally on the J3455. It should be play h264 videos with ease.

    Please provide a full debug log.

    How to post a log (wiki)

    1. Enable debugging in Settings>System Settings>Logging
    2. Restart Kodi
    3. Replicate the problem
    4. Generate a log URL (do not post/upload logs to the forum)

    use "Settings > LibreELEC > System > Paste system logs" or run "pastekodi" over SSH, then post the URL link

    Yeah, sorry, I completely forgot about nightly.

    I have 9.97.1 generic.x86_x64 installed

    I tried a local file, it starts quicker. But it stutters even more than through plex

    I noticed LE only uses 1 core (core 1: 100%, the rest is only 10%)

    Here are my logs: (the pastekodi command didn't return anything, so I uploaded the logs to my nas)

    Synology Drive

    https://lodenas.duckdns.org:5001/d/s/l1anzR4EPt…ICI-5reATmqg1Qg


    I see these errors in my logs:

    Quote from Klojum

    Sadly both links are not working for me, but I'm having some internet connection problems myself lately, so who knows.

    But there is also hastebin (with 60 days retension) ;)

    It was too big for pastebin. This is my hastebin link:

    hastebin

    In case that doesn't work: this is a google drive link:

    https://docs.google.com/document/d/1nTPG4XRuYbyXHUyHu_kbM2HQkbytSQXddPWKrwW2YWU/edit?usp=sharing

    Code
    2021-08-14 07:27:28.069 T:991      INFO <general>: CAESinkALSA - Unable to open device "default" for playback
2021-08-14 07:27:28.131 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=0" may be unconnected (no ELD data)
2021-08-14 07:27:28.132 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=1" may be unconnected (no ELD data)
2021-08-14 07:27:28.132 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=2" may be unconnected (no ELD data)
2021-08-14 07:27:28.133 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=3" may be unconnected (no ELD data)
2021-08-14 07:27:28.133 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=4" may be unconnected (no ELD data)

    There are no audio devices detected. What are you using?

    HDMI#2 seem to be connected. xrandr --verbose|paste may show more details.

    For the failing pastekodi use pastekodi -c >mylog and put the file manually to a paste site.

    • Best Answer
    Quote from mglae
    Code
    2021-08-14 07:27:28.069 T:991      INFO <general>: CAESinkALSA - Unable to open device "default" for playback
2021-08-14 07:27:28.131 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=0" may be unconnected (no ELD data)
2021-08-14 07:27:28.132 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=1" may be unconnected (no ELD data)
2021-08-14 07:27:28.132 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=2" may be unconnected (no ELD data)
2021-08-14 07:27:28.133 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=3" may be unconnected (no ELD data)
2021-08-14 07:27:28.133 T:991     DEBUG <general>: CAESinkALSA - HDMI device "hdmi:CARD=PCH,DEV=4" may be unconnected (no ELD data)

    There are no audio devices detected. What are you using?

    HDMI#2 seem to be connected. xrandr --verbose|paste may show more details.

    For the failing pastekodi use pastekodi -c >mylog and put the file manually to a paste site.

    I'm using this: NiPoGi Mini PC, Intel Celeron J3455 8GB RAM/128GB ROM Mini Computer met Windows 10 Pro, Micro PC ondersteuning Dual HDMI 4K, Wake On LAN, Tiny Desktop PC voor business, vergadering, kantoor, school en HTPC: Amazon.de: Computers & accessoires

    It is a mini pc with 2 HDMI outputs. I have the stuttering on both ports.

    This is the output from xrandr: http://ix.io/3vZ4

    Currently I have the mini pc connected to my regular display (it has no sound) (samsung S24D340) to configure everything. When everything works, I want to connect it to my TV


    EDIT: so, I have some more test. When I connect the mini pc to my display without sound, and then the video is very choppy, and sometimes just freezes.

    mglae response, made me test it at my tv. When I connect it to the tv everything works. So I guess that there is a bug(?) when there is no audio device.

    Kodi working without audio device might be nice to have but no real bug.

    From the web page Line Out is missing on your device.

    As a guess: Try selecting pulseaudio in Kodi. Maybe wit a null device added by pacmd load-module module-null-sink sink_name=MySink.