Stuttering due to high CPU load

    Hello

    I listen to Radio paradise.flac with the addon Tunein2017.

    After about 30 minutes CPU-Kodi is rising to 118% and it stutters only.when playing with mp3 I have not yet noticed.

    Is this due to Kodi or the addon?

    Here is a Kodi.log

    Must be a matrix problem.

    I have contacted Tunein2017 Addon developer who has the same problem with Matrix.

    After about 30 minutes of playing a flac stream the cpu load climbs so high that there are dropouts.

    Local flac files are not affected by this.

    Can you reproduce this?

    When running with high cpu can you:

    Check with "top" to see which processes are using cpu (probably just kodi.bin, but check if anything else is significant).

    In top press H to see which threads are using cpu. That may narrow it down (e.g. LanguageInvoker is python)

    "perf top" may give more fine-grained information about functions where cpu is spending time.

    Can you post the significant entries for each of these (e.g. anything about 5%). "perf top" averages so wants to be left for at least 10 seconds to get a more accurate value.

    Hmm. Not too illuminating. Feels like something is busy spinning in VideoPlayer.

    But not much(*) appears in debug log.

    If you enable component specific debug and enable all categories, do you get anything additional appearing when cpu usage is high?

    (*) You've got some jsonrpc messages appearing - are you controlling with a phone app?

    Curious. I tried a debug master build of LE, thinking if it showed the high CPU I could capture a backtrace which might shed some light.

    But it's been running (strm file containing http://stream.radioparadise.com/rock-flac) for an hour.

    Audio is glitch free and VideoPlayer is showing 0.7%.

    I then ssh-ed into home system, and ran the same. And VideoPlayer is taking 66% after 20 minutes.

    Maybe it's addons or user settings? I've renamed .kodi so default settings/addons and it's still the same.

    I'll need to try a debug build of Matrix.

    Debug build of Matrix was also high cpu.

    I bumped just kodi from the version in Matrix to version in master and it was still high cpu.

    I also bumped ffmpeg from the version in Matrix to version in master and it has low cpu again.

    It feels like a bug in ffmpeg that has been fixed.

    Can you test an LE nightly build, which I think won't have the issue?

    I tried to boot the Raspi 4 with ""LibreELEC-RPi4.arm-11.0-nightly-20211006-9fefbf7.img.gz" and "LibreELEC-RPi4.arm-11.0-nightly-20211008-8696f6d.img.gz" which did not work.the raspi only boots up to the coloured boot screen.then the screen stays black.

    I installed "LibreELEC-RPi4.arm-10.0.0.img.gz" again and restored the backup.

    Quote from dippes

    I tried to boot the Raspi 4 with ""LibreELEC-RPi4.arm-11.0-nightly-20211006-9fefbf7.img.gz" and "LibreELEC-RPi4.arm-11.0-nightly-20211008-8696f6d.img.gz" which did not work.the raspi only boots up to the coloured boot screen.then the screen stays black.

    Did you do a fresh installation for those images? Otherwise it could be related to the KodiNerds repo, which eventually breaks the update.

    Quote from dippes

    Also with the "LibreELEC-RPi4.arm-11.0-nightly-20211010-4ec2af6.img.gz" my Raspi 4 does not boot.

    The start.elf is found (see attachment), then comes the coloured square and then a black screen. That was it.

    Please open a new thread for this, because your original issue is different. Make sure you are using an HDMI 2.0 or 2.1 cable (especially if you have a 4K TV connected). Try to login by SSH when black screen appears, and post a link to a kodi.log.