From 386ecf3d14ea486aba523b14200fcd2e7e04b9d6 Mon Sep 17 00:00:00 2001
From: Seth Flynn <getchoo@tuta.io>
Date: Thu, 13 Feb 2025 16:54:19 -0500
Subject: nixos: make more "traits" mixins

---
 modules/nixos/mixins/zram.nix | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 modules/nixos/mixins/zram.nix

(limited to 'modules/nixos/mixins/zram.nix')

diff --git a/modules/nixos/mixins/zram.nix b/modules/nixos/mixins/zram.nix
new file mode 100644
index 0000000..8d21dde
--- /dev/null
+++ b/modules/nixos/mixins/zram.nix
@@ -0,0 +1,15 @@
+{ config, lib, ... }:
+
+{
+  config = lib.mkIf config.zramSwap.enable {
+    # Optimize system for zram
+    # https://github.com/pop-os/default-settings/pull/163
+    # https://wiki.archlinux.org/title/Zram#Multiple_zram_devices
+    boot.kernel.sysctl = {
+      "vm.swappiness" = 180;
+      "vm.watermark_boost_factor" = 0;
+      "vm.watermark_scale_factor" = 125;
+      "vm.page-cluster" = 0;
+    };
+  };
+}
-- 
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