diff options
Diffstat (limited to 'nixos/modules/services/misc/preload.nix')
-rw-r--r-- | nixos/modules/services/misc/preload.nix | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/nixos/modules/services/misc/preload.nix b/nixos/modules/services/misc/preload.nix new file mode 100644 index 000000000000..19b2531087dd --- /dev/null +++ b/nixos/modules/services/misc/preload.nix @@ -0,0 +1,31 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + cfg = config.services.preload; +in { + meta = { maintainers = pkgs.preload.meta.maintainers; }; + + options.services.preload = { + enable = mkEnableOption "preload"; + package = mkPackageOption pkgs "preload" { }; + }; + + config = mkIf cfg.enable { + systemd.services.preload = { + description = "Loads data into ram during idle time of CPU."; + wantedBy = [ "multi-user.target" ]; + + serviceConfig = { + EnvironmentFile = "${cfg.package}/etc/conf.d/preload"; + ExecStart = "${getExe cfg.package} --foreground $PRELOAD_OPTS"; + Type = "simple"; + # Only preload data during CPU idle time + IOSchedulingClass = 3; + DynamicUser = true; + StateDirectory = "preload"; + }; + }; + }; +} |