PSA: If your Jellyfin is having high memory usage, add MALLOC_TRIM_THRESHOLD_=100000 to environment
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PS: Reddit doesn't allow edit post titles, needed to repost
But this is Lemmy.
OP didn't update their repost bot to understand what it's reposting.
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Many users reported high memory/RAM usage, some 8GB+.
In my case gone from 1.5GB+ to 400MB or less on Raspberry Pi 4.
Adding
MALLOC_TRIM_THRESHOLD_=100000can make a big difference.With Docker:
Add to your docker-compose.yml anddocker compose down && docker compose up -d... environment: - MALLOC_TRIM_THRESHOLD_=100000 ...With systemd:
Edit/etc/default/jellyfinchange the value ofMALLOC_TRIM_THRESHOLD_and restart the service# Disable glibc dynamic heap adjustment MALLOC_TRIM_THRESHOLD_=100000Source: https://github.com/jellyfin/jellyfin/issues/6306#issuecomment-1774093928
Official docker,Debian,Fedora packages already contain
MALLOC_TRIM_THRESHOLD_.
Not present on some docker images likelinuxserver/jellyfinCheck is container (already) have the variable
docker exec -it jellyfin printenv | grep MALLOC_TRIM_THRESHO LD_PS: Reddit doesn't allow edit post titles, needed to repost
It's bad form to just say "set this variable to this value" without any explanation about what that variable does and why that value helped.
Your configuration may not work or may be detrimental for others.
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Many users reported high memory/RAM usage, some 8GB+.
In my case gone from 1.5GB+ to 400MB or less on Raspberry Pi 4.
Adding
MALLOC_TRIM_THRESHOLD_=100000can make a big difference.With Docker:
Add to your docker-compose.yml anddocker compose down && docker compose up -d... environment: - MALLOC_TRIM_THRESHOLD_=100000 ...With systemd:
Edit/etc/default/jellyfinchange the value ofMALLOC_TRIM_THRESHOLD_and restart the service# Disable glibc dynamic heap adjustment MALLOC_TRIM_THRESHOLD_=100000Source: https://github.com/jellyfin/jellyfin/issues/6306#issuecomment-1774093928
Official docker,Debian,Fedora packages already contain
MALLOC_TRIM_THRESHOLD_.
Not present on some docker images likelinuxserver/jellyfinCheck is container (already) have the variable
docker exec -it jellyfin printenv | grep MALLOC_TRIM_THRESHO LD_PS: Reddit doesn't allow edit post titles, needed to repost
I've been having memory leak issues with my Jellyfin container, so I fired it up to see if it has a MALLOC variable set and it immediately crashed my server. Now waiting for the OOM killer to do its thing.
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It's bad form to just say "set this variable to this value" without any explanation about what that variable does and why that value helped.
Your configuration may not work or may be detrimental for others.
If you click the source linked, you can read through all the details.
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Many users reported high memory/RAM usage, some 8GB+.
In my case gone from 1.5GB+ to 400MB or less on Raspberry Pi 4.
Adding
MALLOC_TRIM_THRESHOLD_=100000can make a big difference.With Docker:
Add to your docker-compose.yml anddocker compose down && docker compose up -d... environment: - MALLOC_TRIM_THRESHOLD_=100000 ...With systemd:
Edit/etc/default/jellyfinchange the value ofMALLOC_TRIM_THRESHOLD_and restart the service# Disable glibc dynamic heap adjustment MALLOC_TRIM_THRESHOLD_=100000Source: https://github.com/jellyfin/jellyfin/issues/6306#issuecomment-1774093928
Official docker,Debian,Fedora packages already contain
MALLOC_TRIM_THRESHOLD_.
Not present on some docker images likelinuxserver/jellyfinCheck is container (already) have the variable
docker exec -it jellyfin printenv | grep MALLOC_TRIM_THRESHO LD_PS: Reddit doesn't allow edit post titles, needed to repost
Thank you for posting this! I've been increasing the memory for my VM over and over and it was using 24GB RAM + 4GB swap. Hopefully this will let me reclaim some.
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Many users reported high memory/RAM usage, some 8GB+.
In my case gone from 1.5GB+ to 400MB or less on Raspberry Pi 4.
Adding
MALLOC_TRIM_THRESHOLD_=100000can make a big difference.With Docker:
Add to your docker-compose.yml anddocker compose down && docker compose up -d... environment: - MALLOC_TRIM_THRESHOLD_=100000 ...With systemd:
Edit/etc/default/jellyfinchange the value ofMALLOC_TRIM_THRESHOLD_and restart the service# Disable glibc dynamic heap adjustment MALLOC_TRIM_THRESHOLD_=100000Source: https://github.com/jellyfin/jellyfin/issues/6306#issuecomment-1774093928
Official docker,Debian,Fedora packages already contain
MALLOC_TRIM_THRESHOLD_.
Not present on some docker images likelinuxserver/jellyfinCheck is container (already) have the variable
docker exec -it jellyfin printenv | grep MALLOC_TRIM_THRESHO LD_PS: Reddit doesn't allow edit post titles, needed to repost
How well does jellyfin work on a rpi? How many simultaneous 1080p users with AVC\ACC media can it do? Active cooling?
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OP didn't update their repost bot to understand what it's reposting.
Reddit people, should be banned
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What's the default value?
It could depend on your distro, official packaging (docker,Debian,Fedora) have
MALLOC_TRIM_THRESHOLD_=131072, but different distros could have (or not) ship with different settings.Official settings for systemd https://github.com/jellyfin/jellyfin-packaging/blob/master/debian/conf/jellyfin
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How well does jellyfin work on a rpi? How many simultaneous 1080p users with AVC\ACC media can it do? Active cooling?
Didn't try but depends on which RPI. 4? 5?
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If you click the source linked, you can read through all the details.
The linked source also doesn’t explain what the env variable actually does or why it fixes anything.
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Didn't try but depends on which RPI. 4? 5?
Also depends on the storage medium (SD? SSD?), assuming there's no transcoding.
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