From 5a8a30e0533218d2db74859e6b1d44f76661757b Mon Sep 17 00:00:00 2001
From: Sam <samual.shop@proton.me>
Date: Fri, 10 Jan 2025 10:31:55 +0000
Subject: [PATCH] add earlyoom to citadel and reduce swap

---
 hosts/citadel/default.nix | 7 ++++++-
 hosts/semita/default.nix  | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/hosts/citadel/default.nix b/hosts/citadel/default.nix
index 83ccdae..944e5eb 100644
--- a/hosts/citadel/default.nix
+++ b/hosts/citadel/default.nix
@@ -80,7 +80,7 @@ in {
   swapDevices = [
     {
       device = "/.swapvol/swapfile";
-      size = 32 * 1024;
+      size = 4 * 1024;
     }
   ];
 
@@ -99,6 +99,11 @@ in {
       #     ${pkgs.xorg.xmodmap}/bin/xmodmap -e "keycode 46 = l L Right L"
       # '';
     };
+  # enable oom killer when system ram drops below 5% free
+    earlyoom = {
+      enable = true;
+      freeMemThreshold = 5; # <%5 free
+    };
   };
 
   # fix cpu throttling on Lenovo Thinkpad
diff --git a/hosts/semita/default.nix b/hosts/semita/default.nix
index 04734d1..1b0af6d 100644
--- a/hosts/semita/default.nix
+++ b/hosts/semita/default.nix
@@ -108,7 +108,7 @@ in {
   swapDevices = [
     {
       device = "/.swapvol/swapfile";
-      size = 32 * 1024;
+      size = 4 * 1024;
     }
   ];