mirror of
https://github.com/ryan4yin/nix-config.git
synced 2026-08-29 22:57:16 +02:00
Ryan Yin
4b7375c077
The zram module was auto-imported on all hosts via base scanPaths, and its swappiness=180/page-cluster=0 tunings leaked onto hosts that disabled zram (e.g. idols-ai with a disk swapfile, pushing cold anon pages to disk swap). Wrap the whole module in modules.zram.enable (default true); idols-ai now turns off zram and its tunings with a single switch.
99 lines
2.8 KiB
Nix
99 lines
2.8 KiB
Nix
{
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disko,
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myvars,
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lib,
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pkgs,
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...
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}:
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#############################################################
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#
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# Ai - my main computer, with NixOS + I5-13600KF + RTX 4090 GPU, for gaming & daily use.
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#
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#############################################################
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let
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hostName = "ai"; # Define your hostname.
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inherit (myvars.networking) mainGateway mainGateway6 nameservers;
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inherit (myvars.networking.hostsAddr.${hostName}) iface ipv4 ipv6;
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ipv4WithMask = "${ipv4}/24";
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ipv6WithMask = "${ipv6}/64";
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in
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{
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imports = [
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disko.nixosModules.default
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# disks
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./disko-fs.nix
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./disko-fs-data.nix
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./netdev-mount.nix
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# Include the results of the hardware scan.
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./hardware-configuration.nix
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./hardware-intel.nix
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./hardware-nvidia.nix
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./preservation.nix
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./secureboot.nix
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# others
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./ai
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];
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# Zram consumes physical memory for compression, which can cause a deadlock and system hang if the model size approaches the physical memory limit.
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# Disable the whole module (zram device + its swappiness=180 sysctl tunings); this host uses a disk swapfile instead.
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modules.zram.enable = false;
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services.sunshine.enable = false;
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services.tuned.ppdSettings.main.default = lib.mkForce "performance";
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powerManagement.resumeCommands = ''
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# Insta360 Link may stay enumerated with a stalled UVC endpoint after S3 resume.
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${pkgs.coreutils}/bin/sleep 1
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${pkgs.usbutils}/bin/usbreset 2e1a:4c01 || true
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'';
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networking = {
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inherit hostName;
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# we use networkd instead
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networkmanager.enable = false; # provides nmcli/nmtui for wifi adjustment
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useDHCP = false;
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};
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networking.useNetworkd = true;
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systemd.network.enable = true;
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systemd.network.networks."10-${iface}" = {
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matchConfig.Name = [ iface ];
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networkConfig = {
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Address = [
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ipv4WithMask
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ipv6WithMask
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];
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DNS = nameservers;
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DHCP = "ipv6"; # enable DHCPv6 only, so we can get a GUA.
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IPv6AcceptRA = true; # for Stateless IPv6 Autoconfiguraton (SLAAC)
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LinkLocalAddressing = "ipv6";
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};
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routes = [
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{
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Destination = "0.0.0.0/0";
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Gateway = mainGateway;
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}
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{
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Destination = "::/0";
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Gateway = mainGateway6;
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GatewayOnLink = true; # it's a gateway on local link.
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}
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];
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linkConfig.RequiredForOnline = "routable";
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};
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# This value determines the NixOS release from which the default
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# settings for stateful data, like file locations and database versions
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# on your system were taken. It‘s perfectly fine and recommended to leave
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# this value at the release version of the first install of this system.
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# Before changing this value read the documentation for this option
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# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
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system.stateVersion = "25.11"; # Did you read the comment?
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}
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