hosts/glados: switch to amd_pstate_epp powersave balance_performance

2 files changed, 24 insertions, 15 deletions

diff --git a/hosts/glados/boot.nix b/hosts/glados/boot.nix
index 9ab10d6..4a9af4e 100644
--- a/hosts/glados/boot.nix
+++ b/hosts/glados/boot.nix
@@ -12,13 +12,6 @@
     initrd.systemd.enable = true;
     kernelPackages = pkgs.linuxPackages_latest;
 
-    kernel.sysctl = {
-      "vm.swappiness" = 100;
-      "vm.vfs_cache_pressure" = 500;
-      "vm.dirty_background_ratio" = 1;
-      "vm.dirty_ratio" = 50;
-    };
-
     bootspec.enable = true;
     loader.systemd-boot.enable = lib.mkForce false;
 
@@ -26,6 +19,7 @@
       enable = true;
       pkiBundle = "/etc/secureboot";
     };
+
     supportedFilesystems = ["btrfs" "ntfs"];
   };
 }
diff --git a/hosts/glados/default.nix b/hosts/glados/default.nix
index 1a25561..de2c1d5 100644
--- a/hosts/glados/default.nix
+++ b/hosts/glados/default.nix
@@ -1,4 +1,4 @@
-_: {
+{lib, ...}: {
   imports = [
     ./boot.nix
     ./hardware-configuration.nix
@@ -6,6 +6,16 @@ _: {
     ../../modules/nixos/features/virtualisation.nix
   ];
 
+  boot = {
+    kernelParams = ["amd_pstate=active"];
+    kernel.sysctl = {
+      "vm.swappiness" = 100;
+      "vm.vfs_cache_pressure" = 500;
+      "vm.dirty_background_ratio" = 1;
+      "vm.dirty_ratio" = 50;
+    };
+  };
+
   desktop.gnome.enable = true;
 
   features = {
@@ -14,16 +24,11 @@ _: {
   };
 
   hardware = {
-    enable = true;
     nvidia.enable = true;
+    ssd.enable = true;
   };
 
-  environment.etc."environment".text = ''
-    LIBVA_DRIVER_NAME=vdpau
-  '';
-
   networking.hostName = "glados";
-  powerManagement.cpuFreqGovernor = "ondemand";
 
   security.tpm2 = {
     enable = true;
@@ -35,7 +40,17 @@ _: {
     fwupd.enable = true;
   };
 
-  systemd.services."prepare-kexec".wantedBy = ["multi-user.target"];
+  systemd = {
+    services."prepare-kexec".wantedBy = ["multi-user.target"];
+    tmpfiles.rules = let
+      nproc = 12;
+    in
+      builtins.map
+      (n: "w /sys/devices/system/cpu/cpu${builtins.toString n}/cpufreq/energy_performance_preference - - - - ${"balance_performance"}")
+      (lib.range 0 (nproc - 1));
+  };
+
+  powerManagement.cpuFreqGovernor = "powersave";
 
   zramSwap = {
     enable = true;