Arch Linux

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Okay, sorry, though in fairness I didn't even have any vague directions to look into. Thanks again!

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Is it important that I'm using weston/sway? I've launched kwin on wayland and the leak became much worse. Just with Firefox running it already leaks 2.3 GB, 1.5 GB more than it would under X11.

I've checked that there's no X11 windows running.

Last edited by LaserMoai (2023-05-20 15:26:05)

seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

Not unless this is a freak bug that's triggered by X11 and KWin…
We've ruled out the WM w/ openbox and so this would be to rule otu X11 (which doesn't seem to be the cause either)

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seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

Stupid question: during the openbox test, was KDEs file indexer (baloo) running?
Can you try to disable it?
https://wiki.archlinux.org/title/Baloo# … he_indexer

If that thing leaks filehandles, it's probably gonna eat up RAM fast…

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LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

No, it's definitely disabled. It tanks the performance with LUKS drives.

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Hmm, the RAM leak metric is stably 600-800 megs if I only let the discrete GPU be used. I could've sworn that I've tested that option, I guess that was back when I wasn't properly measuring the leak size.

My laptop model is Lenovo Legion 5 15ACH6A, if that matters.

seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

The natural contender would be gart/gtt then, but we tested that.
Can you also disable the GPU and only run on the AMD chip?

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LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

I can't using the BIOS. I could try to blacklist it in the OS.

I have rechecked gart/gtt just in case.

Last edited by LaserMoai (2023-05-22 20:46:58)

seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

I don't expect that to have significant impact, you're not reverse-priming, are you?
(Ie. run the software on the AMD GPU but have an output attached to the nvidia one)

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LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Both of the GPUs here are AMD. I'll probably figure this out tomorrow.

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

acpi_call hasn't managed to turn the GPU off at least. I can look for other options.

And no,  I never use any outputs apart from the built-in screen.

seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

https://wiki.archlinux.org/title/PCI_pa … _device_ID should hide the device from the OS
You previously disabled the IGP in teh BIOS/UEFI?

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LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

I've managed to figure out how to isolate the GPU with vfio-pci, and the leak is still happening. Is this maybe some strange integrated GPU incompatibility?

Yeah, that was via UEFI.

Last edited by LaserMoai (2023-05-25 09:21:36)

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Should I try the proprietary driver or something?

seth

Member

Registered: 2012-09-03

Posts: 38,710

Re: A large volume of RAM is getting consumed by OS itself

AMDGPU Pro is excusively a GL library; you can try that but I'd curb my expectations.

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LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

It worked. Leak metric is stably 200-400 MB if I launch everything with progl in Openbox.

Last edited by LaserMoai (2023-05-26 20:03:36)

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

Filing a bug report to mesa is fair in this case, right?

EDIT: Never mind, I did it.
https://gitlab.freedesktop.org/mesa/mesa/-/issues/9107

Last edited by LaserMoai (2023-05-27 10:22:58)

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 10,982

Re: A large volume of RAM is getting consumed by OS itself

The progl used does not come from upstream , but is a wrapper created by Ashark around the upstream one.l

It's listed on https://aur.archlinux.org/packages/amf-amdgpu-pro and the source is at https://raw.githubusercontent.com/Ashar … ster/progl

Knowing this detail may help mesa devs in figuring this out, please add it to the bug report .

Last edited by Lone_Wolf (2023-05-27 11:17:24)

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

LaserMoai

Member

Registered: 2023-02-26

Posts: 43

Re: A large volume of RAM is getting consumed by OS itself

OK, done.