dustbowl: Add kernel.perf_event_paranoid sysctl

nixos/dustbowl.nix

@@ -9,7 +9,6 @@
   imports =
     [ # Include the results of the hardware scan.
       /etc/nixos/hardware-configuration.nix
-      /etc/nixos/private.nix
       ./cachix.nix
     ];
 
@@ -47,6 +46,12 @@
     };
   };
 
+  # Set sysctl parameters
+  boot.kernel.sysctl = {
+    # Useful for rr
+    "kernel.perf_event_paranoid" = 1;
+  };
+
   networking.hostName = "dustbowl"; # Define your hostname.
   networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
   networking.wireless.interfaces = [ "wlp2s0" ];