Ancient laptop, ZSWAP and systemd-oomd.service

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1

Hi,

I have an ancient laptop with only 2 GB of memory.

That’s why oomd often kills my processes.

I think moving the SWAP to disk will solve the problem.

I found

https://wiki.archlinux.org/title/Btrfs#Swap_file

Is this acceptable for Fedora?

A couple more questions:

  1. What file size should I make?
  2. Wouldn’t it be better to disable SWAP on ZRAM?

OS = Fedora 38 Cinnamon

Thanks.

2

I’m afraid it can only mitigate the problem to some extent.
You’ll likely still encounter OOM while using modern software with huge RAM requirements, such as browsers.

About 1-4 GB depending on your personal workflow and preferences.
More than that would likely be unbearable to tolerate.

Yes, you can do that:

sudo systemctl mask systemd-zram-setup@zram0.service
sudo systemctl stop systemd-zram-setup@zram0.service

That should work.