Comment on PSA: If your Jellyfin is having high memory usage, add MALLOC_TRIM_THRESHOLD_=100000 to environment

enemenemu@lemm.ee ⁨3⁩ ⁨weeks⁩ ago

• American_Jesus@lemm.ee ⁨3⁩ ⁨weeks⁩ ago

  The value of this tunable is the minimum size (in bytes) of the top-most, releasable chunk in an arena that will trigger a system call in order to return memory to the system from that arena.

  www.gnu.org/…/Memory-Allocation-Tunables.html

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  MALLOC_MMAP_THRESHOLD_ is an environment variable that sets the size threshold for using the mmap system call to allocate memory instead of using the heap.

  • Default: 128 KiB
  • Behavior:
    • If a memory request is ≥ 128 KiB, mmap is used.
    • If < 128 KiB, the heap is used.
  • Purpose:
    • Helps manage large memory allocations more efficiently.
    • Can be adjusted to optimize performance for specific applications.

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