From 53ef1f28c68d191e934e95c7d9622300cf490315 Mon Sep 17 00:00:00 2001
From: stitchy <stitchy@stitchy.moe>
Date: Sun, 3 Nov 2024 11:11:06 -0800
Subject: [PATCH] VFIO fixes and malachite things

---
 config/eww/eww.yuck                        |  1 -
 hosts/malachite/default.nix                | 15 +++++++++++++++
 hosts/malachite/hardware-configuration.nix | 18 +++++++++---------
 3 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/config/eww/eww.yuck b/config/eww/eww.yuck
index f4f5305..59dfbc4 100644
--- a/config/eww/eww.yuck
+++ b/config/eww/eww.yuck
@@ -92,7 +92,6 @@
            :monitor 0
            :geometry (geometry :x "4px"
                                :y "1%"
-                               :width "2.5%"
                                :height "98%"
                                :anchor "left center")
            :stacking "fg"
diff --git a/hosts/malachite/default.nix b/hosts/malachite/default.nix
index d264bf7..8e7052e 100644
--- a/hosts/malachite/default.nix
+++ b/hosts/malachite/default.nix
@@ -40,6 +40,14 @@ let
           # Load VFIO Kernel Module
           modprobe vfio vfio_pci vfio_iommu_type1
 
+          # Performance Governer
+          for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "performance" > "$file"; done
+
+          # Isolating CPU
+          systemctl set-property --runtime -- user.slice AllowedCPUs=16-19
+          systemctl set-property --runtime -- system.slice AllowedCPUs=16-19
+          systemctl set-property --runtime -- init.scope AllowedCPUs=16-19
+
         elif [[ "$HOOK_NAME/$STATE_NAME" == "release/end" ]]; then
 
           modprobe -r vfio_iommu_type1 vfio_pci vfio
@@ -61,6 +69,13 @@ let
           # Reload Modules
           modprobe amdgpu
 
+          # Back to On-Demand Scheduler
+          for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "ondemand" > "$file"; done
+
+          systemctl set-property --runtime -- user.slice AllowedCPUs=0-19
+          systemctl set-property --runtime -- system.slice AllowedCPUs=0-19
+          systemctl set-property --runtime -- init.scope AllowedCPUs=0-19
+
         fi
 
       fi
diff --git a/hosts/malachite/hardware-configuration.nix b/hosts/malachite/hardware-configuration.nix
index 8f0d845..c95853a 100644
--- a/hosts/malachite/hardware-configuration.nix
+++ b/hosts/malachite/hardware-configuration.nix
@@ -20,22 +20,22 @@
     "/" =
       { device = "/dev/disk/by-uuid/8e30bb30-eacf-4d7d-bcec-c2b39982de13";
         fsType = "btrfs";
-        options = [ "subvol=nix" ];
+        options = [ "subvol=nix" "compress=zstd" ];
       };
     "/home" = {
       device = "/dev/disk/by-uuid/8e30bb30-eacf-4d7d-bcec-c2b39982de13";
       fsType = "btrfs";
-      options = [ "subvol=homes/stitchymain" ];
+      options = [ "subvol=homes/stitchymain" "compress=zstd" ];
     };
     "/nix/store" = {
       device = "/dev/disk/by-uuid/8e30bb30-eacf-4d7d-bcec-c2b39982de13";
       fsType = "btrfs";
-      options = [ "subvol=store" ];
+      options = [ "subvol=store" "noatime" "compress=zstd" ];
     };
     "/persist" = {
       device = "/dev/disk/by-uuid/8e30bb30-eacf-4d7d-bcec-c2b39982de13";
       fsType = "btrfs";
-      options = [ "subvol=@persist" ];
+      options = [ "subvol=@persist" "compress=zstd" ];
     };
     "/boot" = {
       device = "/dev/disk/by-uuid/CB12-5062";
@@ -44,27 +44,27 @@
     "/home/stitchynyan/Music" = {
       device = "/dev/disk/by-uuid/feb8239f-5d09-4184-8e46-52185beaa040";
       fsType = "btrfs";
-      options = [ "subvol=music/stitchtunes" "x-systemd.automount" ];
+      options = [ "subvol=music/stitchtunes" "compress=zstd" "x-systemd.automount" ];
     };
     "/home/stitchynyan/Pictures" = {
       device = "/dev/disk/by-uuid/feb8239f-5d09-4184-8e46-52185beaa040";
       fsType = "btrfs";
-      options = [ "subvol=pictures/stitchpics" "x-systemd.automount" ];
+      options = [ "subvol=pictures/stitchpics" "compress=zstd" "x-systemd.automount" ];
     };
     "/home/stitchynyan/Programs/Steam" = {
       device = "/dev/disk/by-uuid/feb8239f-5d09-4184-8e46-52185beaa040";
       fsType = "btrfs";
-      options = [ "subvol=games/stitchgames" "x-systemd.automount" ];
+      options = [ "subvol=games/stitchgames" "compress=zstd" "x-systemd.automount" ];
     };
     "/home/stitchynyan/Videos" = {
       device = "/dev/disk/by-uuid/feb8239f-5d09-4184-8e46-52185beaa040";
       fsType = "btrfs";
-      options = [ "subvol=videos/stitchshows" "x-systemd.automount" ];
+      options = [ "subvol=videos/stitchshows" "compress=zstd" "x-systemd.automount" ];
     };
     "/home/stitchynyan/VirtualMachines" = {
       device = "/dev/disk/by-uuid/feb8239f-5d09-4184-8e46-52185beaa040";
       fsType = "btrfs";
-      options = [ "subvol=virtualmachines/stitchvms" "x-systemd.automount" ];
+      options = [ "subvol=virtualmachines/stitchvms" "compress=zstd" "x-systemd.automount" ];
     };
   };