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{ 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";
};
};
};
}
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