From 77b7e90166f77ffe2eaefb6d5dca8f69d19250ec Mon Sep 17 00:00:00 2001
From: Crony Akatsuki <crony@cronyakatsuki.xyz>
Date: Mon, 9 Feb 2026 14:35:20 +0100
Subject: [PATCH] feat: adopt performance tweaks from cachyos.

---
 hosts/skadi/configuration.nix | 15 +++++++++++++++
 hosts/skadi/home.nix          |  1 +
 modules/linux/nixos/boot.nix  | 11 ++++++++++-
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/hosts/skadi/configuration.nix b/hosts/skadi/configuration.nix
index 2483052..076664f 100644
--- a/hosts/skadi/configuration.nix
+++ b/hosts/skadi/configuration.nix
@@ -42,6 +42,18 @@
     scheduler = "scx_bpfland";
   };
 
+  # Setup ananicy with cachyos rules
+  services.ananicy = {
+    enable = true;
+    package = pkgs.ananicy-cpp;
+    rulesProvider = pkgs.ananicy-rules-cachyos;
+  };
+
+  # Setup power profiles daemon
+  services.power-profiles-daemon = {
+    enable = true;
+  };
+
   # Get nicer hostname
   networking.hostName = "skadi"; # Define your hostname.
 
@@ -71,6 +83,9 @@
     settings.Resolve.FallbackDns = ["192.168.0.5"];
   };
 
+  # Enable bpftune for better networking
+  services.bpftune.enable = true;
+
   # Set your time zone.
   time.timeZone = "Europe/Zagreb";
 
diff --git a/hosts/skadi/home.nix b/hosts/skadi/home.nix
index 1c1ec4b..e0599e5 100644
--- a/hosts/skadi/home.nix
+++ b/hosts/skadi/home.nix
@@ -22,6 +22,7 @@
     TERMINAL = "foot";
     WINEPREFIX = "$HOME/.local/share/wineprefix/default";
     SECOND_BRAIN = "$HOME/docs/sb";
+    __GL_SHADER_DISK_CACHE_SIZE = "12000000000";
   };
 
   # Let Home Manager install and manage itself.
diff --git a/modules/linux/nixos/boot.nix b/modules/linux/nixos/boot.nix
index 15c2257..3fc5f24 100644
--- a/modules/linux/nixos/boot.nix
+++ b/modules/linux/nixos/boot.nix
@@ -9,7 +9,16 @@
 
   config = lib.mkIf config.crony.boot.enable {
     boot.kernel.sysctl = {
-      "vm.swappiness" = 10;
+      # Cachy os adopted values
+      "vm.swappiness" = 100;
+      "vm.vfs_cache_pressure" = 50;
+      "vm.dirty_bytes" = 268435456;
+      "vm.page-cluster" = 1;
+      "vm.dirty_background_bytes" = 67108864;
+      "vm.dirty_writeback_centisecs" = 1500;
+      "net.core.netdev_max_backlog" = 4096;
+      "fs.file-max" = 2097152;
+      # Disable watchdog
       "kernel.nmi_watchdog" = 0;
     };
     boot.kernelParams = ["quiet"];