101 lines
2.7 KiB
Nix
101 lines
2.7 KiB
Nix
{
|
|
config,
|
|
lib,
|
|
pkgs,
|
|
pkgs-unoptimized,
|
|
...
|
|
}:
|
|
{
|
|
imports = [ ];
|
|
|
|
config = lib.mkMerge [
|
|
{ }
|
|
(lib.mkIf (!config.me.buildingIso) {
|
|
nix.settings.system-features = lib.mkForce [
|
|
"gccarch-znver4"
|
|
"gccarch-znver5"
|
|
"gccarch-skylake"
|
|
# "gccarch-alderlake" missing WAITPKG
|
|
"gccarch-x86-64-v3"
|
|
"gccarch-x86-64-v4"
|
|
"benchmark"
|
|
"big-parallel"
|
|
"kvm"
|
|
"nixos-test"
|
|
];
|
|
|
|
# Keep ALL dependencies so we can rebuild offline. This DRASTICALLY increase disk usage, but disk space is cheap.
|
|
# system.includeBuildDependencies = true;
|
|
|
|
# This also should enable building offline? TODO: test.
|
|
# nix.extraOptions = ''
|
|
# keep-outputs = true
|
|
# keep-derivations = true
|
|
# '';
|
|
|
|
nixpkgs.hostPlatform = {
|
|
gcc.arch = "znver4";
|
|
gcc.tune = "znver4";
|
|
system = "x86_64-linux";
|
|
};
|
|
|
|
# # building ON
|
|
# nixpkgs.localSystem = { system = "aarch64-linux"; };
|
|
# # building FOR
|
|
# nixpkgs.crossSystem = { system = "aarch64-linux"; };
|
|
|
|
# nixpkgs.config = {
|
|
# replaceStdenv = ({ pkgs }: pkgs.clangStdenv);
|
|
# };
|
|
# or maybe an overlay
|
|
# stdenv = prev.clangStdenv;
|
|
|
|
nixpkgs.overlays = [
|
|
(
|
|
final: prev:
|
|
let
|
|
addConfig =
|
|
additionalConfig: pkg:
|
|
pkg.override (oldconfig: {
|
|
structuredExtraConfig = pkg.structuredExtraConfig // additionalConfig;
|
|
});
|
|
in
|
|
{
|
|
linux_me = addConfig {
|
|
# Full preemption
|
|
PREEMPT = lib.mkOverride 60 lib.kernel.yes;
|
|
PREEMPT_VOLUNTARY = lib.mkOverride 60 lib.kernel.no;
|
|
|
|
# Google's BBRv3 TCP congestion Control
|
|
TCP_CONG_BBR = lib.kernel.yes;
|
|
DEFAULT_BBR = lib.kernel.yes;
|
|
|
|
# Preemptive Full Tickless Kernel at 300Hz
|
|
HZ = lib.kernel.freeform "300";
|
|
HZ_300 = lib.kernel.yes;
|
|
HZ_1000 = lib.kernel.no;
|
|
} prev.linux_6_13;
|
|
}
|
|
)
|
|
(final: prev: {
|
|
haskellPackages = prev.haskellPackages.extend (
|
|
final': prev': {
|
|
crypton = pkgs-unoptimized.haskellPackages.crypton;
|
|
}
|
|
);
|
|
})
|
|
(final: prev: {
|
|
redis = pkgs-unoptimized.redis;
|
|
gsl = pkgs-unoptimized.gsl;
|
|
})
|
|
];
|
|
|
|
boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux_me;
|
|
})
|
|
(lib.mkIf (config.me.buildingIso) {
|
|
boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux_6_13;
|
|
boot.supportedFilesystems.zfs = true;
|
|
})
|
|
];
|
|
}
|