mirror of
https://github.com/ItsDrike/nixdots
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34 lines
1.2 KiB
Nix
34 lines
1.2 KiB
Nix
{
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pkgs,
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lib,
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config,
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...
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}: let
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inherit (lib) mkIf;
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deviceType = config.myOptions.device.roles.type;
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acceptedTypes = ["laptop" "desktop"];
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in {
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config = mkIf (builtins.elem deviceType acceptedTypes) {
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# https://dataswamp.org/~solene/2022-09-28-earlyoom.html
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# avoid the linux kernel locking itself when we're putting too much strain on the memory
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# this helps avoid having to shut down forcefully when we OOM
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services.earlyoom = {
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enable = true;
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enableNotifications = true; # annoying, but we want to know what's killed
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freeSwapThreshold = 2;
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freeMemThreshold = 2;
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extraArgs = [
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"-g" # kill all processes within a process group
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"--avoid 'Hyprland|soffice|soffice.bin|firefox|thunderbird)$'" # things we want to not kill
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"--prefer '^(electron|.*.exe)$'" # I wish we could kill electron permanently
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];
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# we should ideally write the logs into a designated log file; or even better, to the journal
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# for now we can hope this echo sends the log to somewhere we can observe later
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killHook = pkgs.writeShellScript "earlyoom-kill-hook" ''
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echo "Process $EARLYOOM_NAME ($EARLYOOM_PID) was killed"
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'';
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};
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};
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}
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