desktop: add zram config

2026-02-04 19:11:03 -08:00
parent cdcb3a8eca
commit c36875f74a
1 changed files with 8 additions and 0 deletions
--- a/hosts/common-desktop.nix
+++ b/hosts/common-desktop.nix
@@ -14,6 +14,14 @@
    timeout = 3;
    systemd-boot.enable = lib.mkDefault true;
  };
+  boot.kernel.sysctl = {
+    # https://wiki.archlinux.org/title/Zram#Optimizing_swap_on_zram
+    "vm.swappiness" = 180;
+    "vm.watermark_boost_factor" = 0;
+    "vm.watermark_scale_factor" = 125;
+    "vm.page-cluster" = 0;
+  };
+  zramSwap.enable = true;

  # https://nixos.wiki/wiki/Accelerated_Video_Playback
  hardware.graphics.enable = true;