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nixpkgs/nixos/modules/tasks/powertop.nix
Denys Pavlov 90b6823373 nixos/powertop: wait for hardware to initialize
We should wait until after `multi-user.target` is triggered to allow
hardware to finish initializing, such as network devices and USB drives.
This ensures `powertop --auto-tune` sets more tunables to "Good".

Fixes #66820
2020-01-09 19:45:41 +08:00

30 lines
652 B
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.powerManagement.powertop;
in {
###### interface
options.powerManagement.powertop.enable = mkEnableOption "powertop auto tuning on startup";
###### implementation
config = mkIf (cfg.enable) {
systemd.services = {
powertop = {
wantedBy = [ "multi-user.target" ];
after = [ "multi-user.target" ];
description = "Powertop tunings";
path = [ pkgs.kmod ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStart = "${pkgs.powertop}/bin/powertop --auto-tune";
};
};
};
};
}