66 lines
1.6 KiB
Nix
66 lines
1.6 KiB
Nix
{ lib, pkgs, config, ... }:
|
|
with config.deviceSpecific; {
|
|
zramSwap = {
|
|
enable = true;
|
|
algorithm = "zstd";
|
|
priority = 100;
|
|
memoryPercent = 150; # around 50% of memory
|
|
};
|
|
|
|
persist.state.files = [ "/etc/machine-id" ];
|
|
|
|
services.earlyoom = {
|
|
enable = devInfo.ram < 16;
|
|
freeMemThreshold = 5;
|
|
freeSwapThreshold = 100;
|
|
};
|
|
|
|
services.fstrim = lib.mkIf (devInfo.fileSystem != "zfs") {
|
|
enable = isSSD;
|
|
interval = "weekly";
|
|
};
|
|
|
|
services.zfs = lib.mkIf (devInfo.fileSystem == "zfs") {
|
|
autoScrub.enable = true;
|
|
autoScrub.interval = "monthly";
|
|
trim.enable = isSSD;
|
|
trim.interval = "weekly";
|
|
};
|
|
|
|
boot = {
|
|
loader = {
|
|
timeout = lib.mkForce 4;
|
|
systemd-boot.enable = lib.mkDefault
|
|
pkgs.hostPlatform.system == "x86_64-linux";
|
|
};
|
|
|
|
kernelParams =
|
|
[ "zswap.enabled=0" "scsi_mod.use_blk_mq=1" "nofb" ]
|
|
++ lib.optionals (pkgs.hostPlatform.system == "x86_64-linux") [
|
|
"rd.systemd.show_status=auto"
|
|
"rd.udev.log_priority=3"
|
|
"pti=off"
|
|
"spectre_v2=off"
|
|
"kvm.ignore_msrs=1"
|
|
"kvm.report_ignored_msrs=0"
|
|
];
|
|
|
|
kernelPackages = lib.mkDefault pkgs.linuxPackages_lqx;
|
|
|
|
consoleLogLevel = 3;
|
|
kernel.sysctl = if config.zramSwap.enable then {
|
|
"vm.swappiness" = 100;
|
|
"vm.vfs_cache_pressure" = 500;
|
|
"vm.dirty_background_ratio" = 1;
|
|
"vm.dirty_ratio" = 50;
|
|
"vm.page-cluster" = 0;
|
|
} else {
|
|
"vm.swappiness" = if config.deviceSpecific.isSSD then 1 else 10;
|
|
};
|
|
|
|
tmp.cleanOnBoot = !config.boot.tmp.useTmpfs;
|
|
zfs.forceImportAll = lib.mkDefault false;
|
|
swraid.enable = false;
|
|
};
|
|
}
|