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#51 2025-06-09 17:01:47

develux
Member
Registered: 2024-05-26
Posts: 37

Re: Abnormal memory usage

seth wrote:

but it starts to look like it's just GART/GTT after all?

Will see, don`t have much time for testing now

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#52 2025-06-10 10:57:32

develux
Member
Registered: 2024-05-26
Posts: 37

Re: Abnormal memory usage

Seems it is really GART/GTT after all. Memory usage is lower now. What can I do with this issue now?

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#53 2025-06-10 12:41:26

seth
Member
Registered: 2012-09-03
Posts: 64,524

Re: Abnormal memory usage

Principally nothing. RAM is there to be used.

The oddity is that you do not seem to be able to forcefully reclaim the memory.
Frt: does the reclamation attempt result in increased swap usage? What if you "swapoff" before?
And just to be sure: you did then not first start plasma again to draw /proc/meminfo from there, did you?
Also try head|tail for the memory allocation, in case there's a problem w/ streess: https://unix.stackexchange.com/a/254976

If you want/need to override the amdgpu behavior, you'd use those kernel parameters, but "just because" will most likely only result in inferior performance.

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#54 2025-06-10 13:05:20

develux
Member
Registered: 2024-05-26
Posts: 37

Re: Abnormal memory usage

seth wrote:

And just to be sure: you did then not first start plasma again to draw /proc/meminfo from there, did you?

I did cat /proc/meminfo from tty1, not from plasma

seth wrote:

does the reclamation attempt result in increased swap usage? What if you "swapoff" before?

I did swapoff before trying to reclaim (stress-ng). No result. Will try installing artix (someday) and report if it is fixed there

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