#2535 F34 Change: Enable systemd-oomd by default for all variants
Closed: Accepted 3 years ago by zbyszek. Opened 3 years ago by bcotton.

Provide a better experience for Fedora users in out-of-memory (OOM) situations by enabling systemd-oomd by default. Actions taken by systemd-oomd operate on a per-cgroup level, aligning well with the life cycle of systemd units. systemd-oomd primarily uses Linux pressure stall information (PSI) to make decisions based on wasted productivity due to resource shortages; in addition to that, it also supports swap based actions.


+1

Though not sure if we should enable this for example in i3 spin and others where apps are not properly put in their own cgroups.

Though not sure if we should enable this for example in i3 spin and others where apps are not properly put in their own cgroups.

If oomd is a subpackage in systemd and excluded in a spin's kickstart, it can be globally enabled in presets while selectively removed from spins where appropriate. I think that's a reasonable way to opt-out if they want to.

I'd like to have answers / clarifications for two issues that have been raised on the devel list before I vote:

  • Some desktop environments don't put applications into separate cgroups (AFAIK, only GNOME and KDE do that). Should other desktop-oriented Spins be excluded from this Change for now?

  • There seemed to be concensus that it would be better to switch everybody from earlyoom to systemd-oomd, even on upgrade, to not fragment the Fedora install base. Will this happen or not? The proposal has not been updated.

+1

There's some details to be figured out, but nothing too onerous. I wouldn't be surprised if the opt-out/opt-in mechanisms will need to be adjusted a few times before we reach the final form, and I think it'd be beneficial to push this earlier rather than later to start gathering feedback.

Metadata Update from @zbyszek:
- Issue tagged with: meeting

3 years ago

I agree with @decathorpe here, might as well move everyone over to systemd-oomd on upgrade. And yeah, figuring out the details there may be a bit bumpy, but I think that's fine in rawhide.

+1

+1 here... yeah, Xfce/lxde/etc may need to opt out.

This was discussed in today's FESCo meeting:
AGREED: APPROVED (+6, 2, 0)

Also agreed in the meeting: systemd-oomd-defaults subpackage will be split out of the systemd subpackage.

Metadata Update from @zbyszek:
- Issue close_status updated to: Accepted
- Issue status updated to: Closed (was: Open)

3 years ago

Metadata Update from @zbyszek:
- Issue untagged with: meeting

3 years ago

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