117 lines
3.3 KiB
Nix
117 lines
3.3 KiB
Nix
{
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config,
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lib,
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inputs,
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pkgs,
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...
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}:
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{
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## Variaveis de ambiente contendo o aumento de cache para placas da nvidia
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environment.variables = {
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__GL_SHADER_DISK_CACHE_SIZE = "12000000000";
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VK_LAYER_PATH = "${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d";
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};
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## Configuraçoes de boot para otimzar o kernel e alguns patchs para nvidia
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boot = {
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modprobeConfig.enable = true;
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kernelModules = [ "tcp_bbr" ];
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extraModprobeConfig = ''
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options nvidia NVreg_UsePageAttributeTable=1
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NVreg_InitializeSystemMemoryAllocations=0
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NVreg_DynamicPowerManagement=0x02 '';
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kernel.sysctl = {
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"kernel.split_lock_mitigate" = 0;
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"kernel.nmi_watchdog" = 0;
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"net.core.netdev_max_backlog" = 4096;
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"fs.file-max" = 2097152;
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"net.ipv4.tcp_congestion_control" = "bbr";
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};
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};
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services = {
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earlyoom = {
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enable = true;
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freeSwapThreshold = 2;
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freeMemThreshold = 2;
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extraArgs = [
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"-g"
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"--avoid"
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"'^(X|plasma.*|konsole|kwin|wayland|gnome.*)$'"
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];
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};
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## Otimizaçao do Udev para placas de Video da Nvidia
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udev = {
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enable = true;
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extraRules = ''
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# Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind
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ACTION=="add|bind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
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ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
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TEST=="power/control", ATTR{power/control}="auto"
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# Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind
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ACTION=="remove|unbind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
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ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
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TEST=="power/control", ATTR{power/control}="on"
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# atack shark
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KERNEL=="hidraw*", ATTRS{idVendor}=="1d57", ATTRS{idProduct}=="fa60", MODE="0666", SYMLINK+="xenta-mouse-hidraw", TAG+="uaccess"
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KERNEL=="hidraw*", ATTRS{idVendor}=="1d57", ATTRS{idProduct}=="fa55", MODE="0666", SYMLINK+="xenta-mouse-hidraw", TAG+="uaccess"
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'';
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};
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preload-ng = {
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enable = true;
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settings = {
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cycle = 15;
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memTotal = -5;
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memFree = 70;
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memCached = 10;
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memBuffers = 50;
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minSize = 1000000;
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processes = 60;
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sortStrategy = 0;
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autoSave = 1800;
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mapPrefix = "/nix/store/;/run/current-system/;!/";
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exePrefix = "/nix/store/;/run/current-system/;!/";
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};
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};
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};
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systemd.services.set-min-free-mem = {
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description = "Set vm.min_free_kbytes dynamically";
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wantedBy = [ "multi-user.target" ];
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after = [ "local-fs.target" ];
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serviceConfig = {
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User = "root";
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RemainAfterExit = true;
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};
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script = ''
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TOTAL_MEM=$(${pkgs.gawk}/bin/awk '/MemTotal/ {printf "%.0f", $2 * 0.01}' /proc/meminfo)
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if [ -z "$TOTAL_MEM" ] || [ "$TOTAL_MEM" -eq 0 ]; then
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echo "Failed to calculate memory size" >&2
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exit 1
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fi
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${pkgs.sysctl}/bin/sysctl -w vm.min_free_kbytes=$TOTAL_MEM
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'';
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};
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## sistema de compressao compressao brtfs
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fileSystems = {
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"/" = {
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options = [ "compress=zstd:3" ];
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};
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};
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## confiuraçao da zram
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zramSwap = {
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enable = true;
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memoryPercent = 40;
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algorithm = "zstd";
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};
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}
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