Init

README.md

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+# CachyOS-Settings
+Configuration files that tweak sysctl values, add udev rules to automatically set schedulers, and provide additional optimizations.
+
+[CachyOS-Settings](https://github.com/CachyOS/CachyOS-Settings)
+
+## udev rules
+- Audio latency
+- SATA Active Link Power Management for HDD to prioritize max performance 
+- IO schedulers, automatic selection schedulers depends on your HW - SATA SSD, NVME and HDD.
+- NVIDIA, load, unload modules and set-up power management. 
+
+## sysctl
+- Tweaks focused to memory and network.
+
+## modprobe
+- NVIDIA and enable direct rendering
+- Force using of the amdgpu driver for Southern Islands (GCN 1.0+) and Sea Islands (GCN 2.0+).
+
+## systemd
+- PCI latency
+- Journal Size reduced to 50MB
+- KSM inheritated via system
+- Timesync config for time.google.com
+- Zram Generator config
+
+## Scripts
+- Easily switch between amdpstate-epp and amdpstate-guided
+- Upload logs with paste-cachyos, for example: sudo dmesg | paste-cachyos
+- View up to 10 process memory/swap usage (topmem)
+- Run OpenGL programs with the Zink Gallium driver using the zink-run wrapper

etc/debuginfod/cachyos.urls

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+https://debuginfod.cachyos.org

push.sh

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+#!/bin/bash
+
+git add . && git commit -m "Update" && git push
+
+echo "Ready"

usr/bin/cachyos-bugreport.sh

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+#!/usr/bin/env bash
+# CachyOS bug reporting shell script.  This shell
+# script will generate a log file named "cachyos-bug-report.log".
+
+LOG_FILENAME="${LOG_FILENAME:-"cachyos-bugreport.log"}"
+OLD_LOG_FILENAME=cachyos-bugreport.log.old
+
+ask_yes_no(){
+    local question="${1}"
+    while ! printf '%s' "${answer}" | grep -q '^\([Yy]\(es\)\?\|[Nn]\(o\)\?\)$'; do
+        printf '%s' "${question} [Y]es/[N]o: "
+        read -r answer
+    done
+
+    if printf '%s' "${answer}" | grep -q '^[Nn]\(o\)\?$'; then
+        return 1
+    fi
+}
+
+check_root(){
+    # Check that we are root, required for dmesg
+    if [ "$(id -u)" -ne 0 ]; then
+        echo "ERROR: Please run $(basename "$0") as root." >&2
+        exit 1
+    fi
+}
+
+
+# move any old log file
+check_oldlog() {
+    if [ -f "$LOG_FILENAME" ]; then
+        mv "$LOG_FILENAME" "$OLD_LOG_FILENAME"
+    fi
+}
+
+
+check_wpermission() {
+    if ! touch "$LOG_FILENAME" 2>/dev/null; then
+        cat << EOF >&2
+
+ERROR: Working directory is not writable; please cd to a directory
+       where you have write permission so that the $LOG_FILENAME
+       file can be written.
+
+EOF
+        exit 1
+    fi
+}
+
+get_installed_packages() {
+    if [ -e /var/lib/pacman/sync/cachyos-v4.db ]; then
+        pacman -Ss | grep --color=never "^cachyos-v4/.*\[installed\]"
+    elif [ -e /var/lib/pacman/sync/cachyos-v3.db ]; then
+        pacman -Ss | grep --color=never "^cachyos-v3/.*\[installed\]"
+    elif [ -e /var/lib/pacman/sync/cachyos-znver4.db ]; then
+        pacman -Ss | grep --color=never "^cachyos-znver4/.*\[installed\]"
+    else
+        echo "znver4, v4 or v3 repositories are not used"
+    fi
+}
+
+bugreport() {
+    echo "Starting with bugreport"
+
+    cat << EOF >"$LOG_FILENAME"
+____________________________________________
+
+Start of CachyOS bug report log file. Please send this report,
+along with a description of your bug, to CachyOS.
+
+Date: $(date)
+uname: $(uname -a)
+
+____________________________________________
+Getting Hardware Information
+
+$(inxi -F)
+____________________________________________
+Getting Scheduler information
+
+sched-ext:
+$(grep -R "" /sys/kernel/sched_ext/)
+
+$(journalctl --output cat -k | grep -i scheduler)
+
+____________________________________________
+
+dmesg
+
+$(dmesg)
+
+____________________________________________
+journalctl of current boot
+
+$(journalctl -b -p 4..1)
+____________________________________________
+
+Installed packages
+
+$(get_installed_packages)
+--------------------------------------------
+EOF
+}
+
+upload() {
+    if ask_yes_no 'Do you want to upload this log to https://paste.cachyos.org?'; then
+        echo "Uploading Log"
+        paste-cachyos "$LOG_FILENAME"
+    else
+        echo "Not uploading Log"
+    fi
+
+}
+
+check_root
+check_oldlog
+check_wpermission
+bugreport
+upload

usr/bin/dlss-swapper

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+#!/usr/bin/bash
+
+# This forces Nvidia DLSS to use the latest preset for SR, RR and framegen + updates the dlss dlls via ngx
+
+export PROTON_ENABLE_NGX_UPDATER=1
+export DXVK_NVAPI_DRS_NGX_DLSS_RR_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_SR_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_FG_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_RR_OVERRIDE_RENDER_PRESET_SELECTION=render_preset_latest
+export DXVK_NVAPI_DRS_NGX_DLSS_SR_OVERRIDE_RENDER_PRESET_SELECTION=render_preset_latest
+
+# applied variables, now execute the rest of the command
+exec "$@"

usr/bin/dlss-swapper-dll

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+#!/usr/bin/bash
+
+# This forces Nvidia DLSS to use the latest preset for SR, RR and framegen + skips ngx updater
+
+export DXVK_NVAPI_DRS_NGX_DLSS_RR_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_SR_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_FG_OVERRIDE=on
+export DXVK_NVAPI_DRS_NGX_DLSS_RR_OVERRIDE_RENDER_PRESET_SELECTION=render_preset_latest
+export DXVK_NVAPI_DRS_NGX_DLSS_SR_OVERRIDE_RENDER_PRESET_SELECTION=render_preset_latest
+
+# applied variables, now execute the rest of the command
+exec "$@"

usr/bin/game-performance

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+#!/usr/bin/env bash
+# Helper script to enable the performance gov with proton or others
+if ! command -v powerprofilesctl &>/dev/null; then
+    echo "Error: powerprofilesctl not found" >&2
+    exit  1
+fi
+
+# Don't fail if the CPU driver doesn't support performance power profile
+if ! powerprofilesctl list | grep -q 'performance:'; then
+    exec "$@"
+fi
+
+# Set performance governors, as long the game is launched
+if [ -n "$GAME_PERFORMANCE_SCREENSAVER_ON" ]; then
+    exec powerprofilesctl launch -p performance \
+        -r "Launched with CachyOS game-performance utility" -- "$@"
+else
+    exec systemd-inhibit --why "CachyOS game-performance is running" powerprofilesctl launch \
+        -p performance -r "Launched with CachyOS game-performance utility" -- "$@"
+fi

usr/bin/kerver

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+#!/usr/bin/env bash
+
+cat << EOF
+Check kernel version:
+
+$(cat /proc/version && uname -a)
+
+
+Check x86_64 support:
+
+$(/lib64/ld-linux-x86-64.so.2 --help | grep "(supported, searched)")
+
+
+Check CPU config:
+
+$(zgrep -iE 'CONFIG_(GENERIC_CPU(=| is)|X86_64_VERSION|MZEN|MBULLDOZER|MPILEDRIVER|MSTREAMROLLER|MEXCAVATOR|MBOBCAT|MJAGUAR|MK10|MK8SSE3|MATOM|MGOLDMONTPLUS|MSKYLAKE2|MIVYBRIDGE|MICELAKE|MNATIVE_INTEL|MNATIVE_AMD|X86_NATIVE_CPU)' /proc/config.gz)
+
+
+Current disk schedulers:
+
+$(for disk in /sys/block/*/
+do [ -f "$disk/queue/scheduler" ] \
+    && echo "$(basename "$disk"): $(cat "$disk/queue/scheduler")"
+done)
+
+Check available schedulers:
+
+$(journalctl --output cat -k | grep -i scheduler)
+EOF

usr/bin/paste-cachyos

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+#!/usr/bin/env bash
+
+# Change the url accordingly
+URL="https://paste.cachyos.org"
+
+FILEPATH="$1"
+FILENAME="$(basename -- "$FILEPATH")"
+EXTENSION="${FILENAME##*.}"
+
+RESPONSE="$(curl --data-binary @"${FILEPATH:-/dev/stdin}" --url $URL)"
+PASTELINK="${URL}${RESPONSE}"
+
+[ -z "$EXTENSION" ] && \
+    echo "$PASTELINK" || \
+    echo "${PASTELINK}.${EXTENSION}"

usr/bin/pci-latency

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+#!/usr/bin/env sh
+# This script is designed to improve the performance and reduce audio latency
+# for sound cards by setting the PCI latency timer to an optimal value of 80
+# cycles. It also resets the default value of the latency timer for other PCI
+# devices, which can help prevent devices with high default latency timers from
+# causing gaps in sound.
+
+# Check if the script is run with root privileges
+if [ "$(id -u)" -ne 0 ]; then
+  echo "Error: This script must be run with root privileges." >&2
+  exit 1
+fi
+
+# Reset the latency timer for all PCI devices
+setpci -v -s '*:*' latency_timer=20
+setpci -v -s '0:0' latency_timer=0
+
+# Set latency timer for all sound cards
+setpci -v -d "*:*:04xx" latency_timer=80

usr/bin/sbctl-batch-sign

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+#!/usr/bin/env bash
+
+# sbctl-batch-sign is a helper script designed to make it easier for users to sign files needed for secure boot support.
+# The obvious case in which this script helps a lot is when dual booting Windows as there are a lot of files by Windows that
+# needs to be signed in EFI.
+set -e
+
+if [ -f /boot/limine.conf ]; then
+    echo "Limine detected, please do not use this script."
+    exit 0
+fi
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo "Error: This script must be run with root privileges."
+    exit 1
+fi
+
+export ESP_PATH=/boot
+sbctl verify 2>/dev/null | awk '/✗/ {print $2}' | while IFS= read -r entry; do
+    # We expect users who use this script to enroll their
+    # own keys alongside Microsoft's.
+    # With that in mind, there's no need to sign MS ESP
+    # files with our own keys.
+    if [[ "$entry" =~ ^.*/EFI/(Microsoft|Windows) || "$entry" == *.mui || "$entry" == *.dll
+        || "$entry" =~ ^/boot/grub ]]; then
+        continue
+    fi
+    sbctl sign -s "$entry"
+done

usr/bin/topmem

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+#!/usr/bin/env lua
+local f, concat, sort = string.format, table.concat, table.sort
+local found, uv = pcall(require, 'luv')
+
+local function die(err, ...)
+    print(err:format(...))
+    os.exit(1)
+end
+
+if not found then
+    die("lua-luv dependency is missing, please install it from repositories")
+end
+
+local function printf(pattern, ...)
+    print(pattern:format(...))
+end
+
+-- Patterns
+local pid_pattern = "[0-9]+"
+local ksm_profit_pattern = "ksm_process_profit%s*([0-9]+)"
+local vm_rss_pattern = "VmRSS:%s*([0-9]+)"
+local vm_swap_pattern = "VmSwap:%s*([0-9]+)"
+
+local function get_process_values(pid)
+    local path = concat({ "/proc", pid, "status" }, "/")
+    local file = io.open(path)
+
+    if not file then
+        return nil
+    end
+
+    local rss, swap
+    local line = file:read()
+    while line do
+        if rss == nil then
+            rss = line:match(vm_rss_pattern)
+        elseif swap == nil then
+            swap = line:match(vm_swap_pattern)
+        else
+            break
+        end
+        line = file:read()
+    end
+    file:close()
+    return tonumber(rss), tonumber(swap)
+end
+
+local function get_process_ksm_profit(pid)
+    local file = io.open(concat({ "/proc", pid, "ksm_stat" }, "/"))
+
+    if not file then
+        return 0
+    end
+
+    local stat = file:read("*a")
+    local profit = stat:match(ksm_profit_pattern)
+
+    file:close()
+
+    if not profit then
+        return 0
+    end
+
+    return tonumber(profit)
+end
+
+local function get_process_first_arg(pid)
+    local file = io.open(concat({ "/proc", pid, "cmdline" }, "/"))
+
+    if not file then
+        return nil
+    end
+
+    local cmdline = file:read("*all")
+    file:close()
+
+    return cmdline:match("([^%z]+)")
+end
+
+local function convert_hashmap_table(map)
+    local new_hashmap = {}
+    for key, value in pairs(map) do
+        new_hashmap[#new_hashmap + 1] = { value[1], value[2], value[3], key }
+    end
+
+    return new_hashmap
+end
+
+local function get_process_map(sort_by)
+    local map = {}
+    local processes = uv.fs_scandir("/proc")
+    local pid, ftype = uv.fs_scandir_next(processes)
+
+    while pid do
+        if pid:match(pid_pattern) then
+            if ftype == "directory" then
+                local rss, swap = get_process_values(pid)
+                local name = get_process_first_arg(pid)
+                local ksm_profit = get_process_ksm_profit(pid)
+                if name and rss then
+                    if map[name] then
+                        map[name][1] = map[name][1] + rss
+                        map[name][2] = map[name][2] + swap
+                        map[name][3] = map[name][3] + ksm_profit
+                    else
+                        map[name] = { rss, swap, ksm_profit }
+                    end
+                end
+            end
+        end
+        pid, ftype = uv.fs_scandir_next(processes)
+    end
+    map = convert_hashmap_table(map)
+    sort(map, function(a, b) return (a[sort_by] > b[sort_by]) end)
+    return map
+end
+
+local function truncate(str)
+    if #str > 25 then
+        return str:sub(1, 25) .. "..."
+    else
+        return str
+    end
+end
+
+local function get_filename(path)
+    local lastSlash = path:find("/[^/]*$")
+    if lastSlash then
+        return path:sub(lastSlash + 1)
+    else
+        return path
+    end
+end
+
+local function print_top(size, sort_by)
+    local map = get_process_map(sort_by)
+    printf("%-9s %35s %-9s %-s", "MEMORY", "Top " .. size .. " processes       ", "SWAP", "KSM")
+    for i = 1, size do
+        local entry = map[i]
+        if entry then
+            printf(
+                "%-9s %-35s %-9s %-s",
+                f("%.0f", entry[1] / 1024) .. "M",
+                truncate(get_filename(entry[4])),
+                f("%.0f", entry[2] / 1024) .. "M",
+                f("%.0f", entry[3] / 1024 / 1024) .. "M"
+            )
+        end
+    end
+end
+
+local function print_help()
+    print([[
+Shows names of the top 10 (or N) processes by memory consumption
+
+Usage: topmem [OPTIONS] [N]
+
+Arguments:
+  [N] [default: 10]
+
+Options:
+  -s, --sort <TYPE>  Column to sort by [possible values: rss (default), swap, ksm]
+  -h, --help         Show this message]]
+)
+    os.exit(0)
+end
+
+local function main()
+    local sort_types = {
+        ["rss"] = 1,
+        ["swap"] = 2,
+        ["ksm"] = 3
+    }
+    local sort_by = sort_types["rss"]
+    local size
+    local i = 1
+    while i < #arg + 1 do
+        if arg[i] == "--sort" or arg[i] == "-s" or arg[i]:match("--sort=*") then
+            local criteria
+            local shift = true
+
+            for value in string.gmatch(arg[i], "([^=]+)") do
+                if value ~= "--sort" and value ~= "-s" then
+                    criteria = value
+                    shift = false
+                    break
+                end
+            end
+
+            criteria = criteria or arg[i + 1]
+            if not criteria then
+                die("Column to sort by is not specified")
+            end
+
+            if not sort_types[criteria] then
+                die("Wrong sorting criterion. Only available: rss, swap, ksm.")
+            else
+                sort_by = sort_types[criteria]
+                if shift then
+                    i = i + 1
+                end
+            end
+        elseif arg[i] == "--help" or arg[i] == "-h" then
+            print_help()
+        else
+            local status, value = pcall(tonumber, arg[i])
+            if not status then
+                die("The argument must be a number")
+            else
+                size = value
+            end
+        end
+        i = i + 1
+    end
+
+    print_top(size or 10, sort_by)
+end
+
+main()

usr/bin/zink-run

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+#!/usr/bin/env bash
+export MESA_LOADER_DRIVER_OVERRIDE=zink
+export GALLIUM_DRIVER=zink
+export __GLX_VENDOR_LIBRARY_NAME=mesa
+export __EGL_VENDOR_LIBRARY_FILENAMES=/usr/share/glvnd/egl_vendor.d/50_mesa.json
+exec "$@"

usr/lib/modprobe.d/20-audio-pm.conf

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+# Disables power saving capabilities for snd-hda-intel when device is not
+# running on battery power. This is needed because it prevents audio cracks on
+# some hardware. If device starts working on battery power, same named udev rule
+# re-enables power saving.
+options snd_hda_intel power_save=0

usr/lib/modprobe.d/amdgpu.conf

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+# Force using of the amdgpu driver for Southern Islands (GCN 1.0+) and Sea
+# Islands (GCN 2.x) generations.
+options amdgpu si_support=1 cik_support=1
+options radeon si_support=0 cik_support=0

usr/lib/modprobe.d/blacklist.conf

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+# Blacklist the Intel TCO Watchdog/Timer module
+blacklist iTCO_wdt
+
+# Blacklist the AMD SP5100 TCO Watchdog/Timer module (Required for Ryzen cpus)
+blacklist sp5100_tco

usr/lib/modprobe.d/nvidia.conf

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+#
+# NVreg_UsePageAttributeTable=1 (Default 0) - Activating the better memory
+# management method (PAT). The PAT method creates a partition type table at a
+# specific address mapped inside the register and utilizes the memory
+# architecture and instruction set more efficiently and faster. If your system
+# can support this feature, it should improve CPU performance.
+#
+# NVreg_InitializeSystemMemoryAllocations=0 (Default 1) - Disables clearing
+# system memory allocation before using it for the GPU. Potentially improves
+# performance, but at the cost of increased security risks. Write "options
+# nvidia NVreg_InitializeSystemMemoryAllocations=1" in
+# /etc/modprobe.d/nvidia.conf, if you want to return the default value. Note:
+# It is possible to use more memory (?)
+#
+# NVreg_DynamicPowerManagement=0x02 - Enables the use of dynamic power
+# management for Turing generation mobile cards, allowing the dGPU to be
+# powered down during idle time.
+#
+# NVreg_RegistryDwords=RMIntrLockingMode=1 (default 0) - enables experimental
+# switch for better frame-pacing this mainly improves it for high refresh rate
+# monitors with VRR or VR headsets.
+#
+# Note: This only works for PRIME configurations if your dGPU is controlling an
+# external monitor.
+#
+# For example: At 240Hz each frame is expected every 4ms. But if a 1ms
+# task—say, in the kernel or on the GSP — runs when a frame is about to be
+# displayed, it can delay the rendering. Instead of a neat sequence at T+4ms,
+# T+8ms, T+12ms, the frames might appear at T+4ms, T+9ms, T+12ms, etc. This
+# shows how even small delays can shift frame timing, potentially impacting
+# smooth display output.
+#
+options nvidia NVreg_UsePageAttributeTable=1 \
+    NVreg_InitializeSystemMemoryAllocations=0 \
+    NVreg_DynamicPowerManagement=0x02 \
+    NVreg_RegistryDwords=RMIntrLockingMode=1

usr/lib/modules-load.d/ntsync.conf

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+ntsync

usr/lib/sysctl.d/99-bore-scheduler.conf

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+### Use only if you want to change the default values!
+### For more information look here: https://github.com/firelzrd/bore-scheduler#readme
+
+### Additional settings for BORE Scheduler (Work only if the BORE scheduler is enabled!)
+### So make sure that kernel.sched_bore has a value of 1
+
+# sched_burst_cache_lifetime (range: 0 - 4294967295, default: 60000000)
+#kernel.sched_burst_cache_lifetime = 60000000
+
+# sched_burst_fork_atavistic (range: 0 - 3, default: 2)
+#kernel.sched_burst_fork_atavistic = 2
+
+# sched_burst_penalty_offset (range: 0 - 64, default: 22)
+#kernel.sched_burst_penalty_offset = 22
+
+# sched_burst_penalty_scale (range: 0 - 4095, default: 1280)
+#kernel.sched_burst_penalty_scale = 1280
+
+# sched_burst_smoothness_long  (range: 0 - 1, default: 1)
+#kernel.sched_burst_smoothness_long  = 1
+
+# sched_burst_smoothness_short (range: 0 - 1, default: 0)
+#kernel.sched_burst_smoothness_short = 0
+
+# sched_burst_exclude_kthreads (range: 0 - 1, default: 1)
+#kernel.sched_burst_exclude_kthreads = 1

usr/lib/sysctl.d/99-cachyos-settings.conf

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+# The sysctl swappiness parameter determines the kernel's preference for pushing anonymous pages or page cache to disk in memory-starved situations.
+# A low value causes the kernel to prefer freeing up open files (page cache), a high value causes the kernel to try to use swap space,
+# and a value of 100 means IO cost is assumed to be equal.
+vm.swappiness = 100
+
+# The value controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects (VFS cache).
+# Lowering it from the default value of 100 makes the kernel less inclined to reclaim VFS cache (do not set it to 0, this may produce out-of-memory conditions)
+vm.vfs_cache_pressure = 50
+
+# Contains, as bytes, the number of pages at which a process which is
+# generating disk writes will itself start writing out dirty data.
+vm.dirty_bytes = 268435456
+
+# page-cluster controls the number of pages up to which consecutive pages are read in from swap in a single attempt.
+# This is the swap counterpart to page cache readahead. The mentioned consecutivity is not in terms of virtual/physical addresses,
+# but consecutive on swap space - that means they were swapped out together. (Default is 3)
+# increase this value to 1 or 2 if you are using physical swap (1 if ssd, 2 if hdd)
+vm.page-cluster = 0
+
+# Contains, as bytes, the number of pages at which the background kernel
+# flusher threads will start writing out dirty data.
+vm.dirty_background_bytes = 67108864
+
+# The kernel flusher threads will periodically wake up and write old data out to disk.  This
+# tunable expresses the interval between those wakeups, in 100'ths of a second (Default is 500).
+vm.dirty_writeback_centisecs = 1500
+
+# This action will speed up your boot and shutdown, because one less module is loaded. Additionally disabling watchdog timers increases performance and lowers power consumption
+# Disable NMI watchdog
+kernel.nmi_watchdog = 0
+
+# Enable the sysctl setting kernel.unprivileged_userns_clone to allow normal users to run unprivileged containers.
+kernel.unprivileged_userns_clone = 1
+
+# To hide any kernel messages from the console
+kernel.printk = 3 3 3 3
+
+# Restricting access to kernel pointers in the proc filesystem
+kernel.kptr_restrict = 2
+
+# Disable Kexec, which allows replacing the current running kernel.
+kernel.kexec_load_disabled = 1
+
+# Increase netdev receive queue
+# May help prevent losing packets
+net.core.netdev_max_backlog = 4096
+
+# Set size of file handles and inode cache
+fs.file-max = 2097152

usr/lib/systemd/journald.conf.d/00-journal-size.conf

@@ -0,0 +1,2 @@
+[Journal]
+SystemMaxUse=50M

usr/lib/systemd/system.conf.d/00-timeout.conf

@@ -0,0 +1,3 @@
+[Manager]
+DefaultTimeoutStartSec=15s
+DefaultTimeoutStopSec=10s

usr/lib/systemd/system.conf.d/limits.conf

@@ -0,0 +1,2 @@
+[Manager]
+DefaultLimitNOFILE=2048:2097152

usr/lib/systemd/system/pci-latency.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Adjust latency timers for PCI peripherals
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/pci-latency
+
+[Install]
+WantedBy=multi-user.target

usr/lib/systemd/system/rtkit-daemon.service.d/override.conf

@@ -0,0 +1,2 @@
+[Service]
+LogLevelMax=info

usr/lib/systemd/system/user@.service.d/delegate.conf

@@ -0,0 +1,2 @@
+[Service]
+Delegate=cpu cpuset io memory pids 

usr/lib/systemd/timesyncd.conf.d/timesyncd.conf

@@ -0,0 +1,8 @@
+[Time]
+NTP=time.cloudflare.com
+FallbackNTP=time.google.com 0.arch.pool.ntp.org 1.arch.pool.ntp.org 2.arch.pool.ntp.org 3.arch.pool.ntp.org
+#RootDistanceMaxSec=5
+#PollIntervalMinSec=32
+#PollIntervalMaxSec=2048
+#ConnectionRetrySec=30
+#SaveIntervalSec=60

usr/lib/systemd/user.conf.d/limits.conf

@@ -0,0 +1,2 @@
+[Manager]
+DefaultLimitNOFILE=1024:1048576

usr/lib/systemd/zram-generator.conf

@@ -0,0 +1,5 @@
+[zram0] 
+compression-algorithm = zstd lz4 (type=huge)
+zram-size = ram
+swap-priority = 100
+fs-type = swap

usr/lib/tmpfiles.d/coredump.conf

@@ -0,0 +1,2 @@
+# Clear all coredumps that were created more than 3 days ago
+d /var/lib/systemd/coredump 0755 root root 3d

usr/lib/tmpfiles.d/thp-shrinker.conf

@@ -0,0 +1,6 @@
+# THP Shrinker has been added in the 6.12 Kernel
+# Default Value is 511
+# THP=always policy vastly overprovisions THPs in sparsely accessed memory areas, resulting in excessive memory pressure and premature OOM killing
+# 409 means that any THP that has more than 409 out of 512 (80%) zero filled filled pages will be split.
+# This reduces the memory usage, when THP=always used and the memory usage goes down to around the same usage as when madvise is used, while still providing an equal performance improvement
+w! /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none - - - - 409

usr/lib/tmpfiles.d/thp.conf

@@ -0,0 +1,3 @@
+# Improve performance for applications that use tcmalloc
+# https://github.com/google/tcmalloc/blob/master/docs/tuning.md#system-level-optimizations
+w! /sys/kernel/mm/transparent_hugepage/defrag - - - - defer+madvise

usr/lib/udev/rules.d/20-audio-pm.rules

@@ -0,0 +1,11 @@
+# Disables power saving capabilities for snd-hda-intel when device is not
+# running on battery power. This is needed because it prevents audio cracks on
+# some hardware.
+SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", TEST=="/sys/module/snd_hda_intel", \
+    RUN+="/bin/sh -c 'echo $$(cat /run/udev/snd-hda-intel-powersave 2>/dev/null || \
+        echo 10) > /sys/module/snd_hda_intel/parameters/power_save'"
+
+SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", TEST=="/sys/module/snd_hda_intel", \
+    RUN+="/bin/sh -c '[[ $$(cat /sys/module/snd_hda_intel/parameters/power_save) != 0 ]] && \
+        echo $$(cat /sys/module/snd_hda_intel/parameters/power_save) > /run/udev/snd-hda-intel-powersave; \
+        echo 0 > /sys/module/snd_hda_intel/parameters/power_save'"

usr/lib/udev/rules.d/30-zram.rules

@@ -0,0 +1,14 @@
+# When used with ZRAM, it is better to prefer page out only anonymous pages,
+# because it ensures that they do not go out of memory, but will be just
+# compressed. If we do frequent flushing of file pages, that increases the
+# percentage of page cache misses, which in the long term gives additional
+# cycles to re-read the same data from disk that was previously in page cache.
+# This is the reason why it is recommended to use high values from 100 to keep
+# the page cache as hermetic as possible, because otherwise it is "expensive"
+# to read data from disk again. At the same time, uncompressing pages from ZRAM
+# is not as expensive and is usually very fast on modern CPUs.
+#
+# Also it's better to disable Zswap, as this may prevent ZRAM from working
+# properly or keeping a proper count of compressed pages via zramctl.
+ACTION=="change", KERNEL=="zram0", ATTR{initstate}=="1", SYSCTL{vm.swappiness}="150", \
+    RUN+="/bin/sh -c 'echo N > /sys/module/zswap/parameters/enabled'"

usr/lib/udev/rules.d/40-hpet-permissions.rules

@@ -0,0 +1,2 @@
+KERNEL=="rtc0", GROUP="audio"
+KERNEL=="hpet", GROUP="audio"

usr/lib/udev/rules.d/50-sata.rules

@@ -0,0 +1,4 @@
+# SATA Active Link Power Management
+ACTION=="add", SUBSYSTEM=="scsi_host", KERNEL=="host*", \
+    ATTR{link_power_management_policy}=="*", \
+    ATTR{link_power_management_policy}="max_performance"

usr/lib/udev/rules.d/60-ioschedulers.rules

@@ -0,0 +1,11 @@
+# HDD
+ACTION=="add|change", KERNEL=="sd[a-z]*", ATTR{queue/rotational}=="1", \
+    ATTR{queue/scheduler}="bfq"
+
+# SSD
+ACTION=="add|change", KERNEL=="sd[a-z]*|mmcblk[0-9]*", ATTR{queue/rotational}=="0", \
+    ATTR{queue/scheduler}="mq-deadline"
+
+# NVMe SSD
+ACTION=="add|change", KERNEL=="nvme[0-9]*", ATTR{queue/rotational}=="0", \
+    ATTR{queue/scheduler}="none"

usr/lib/udev/rules.d/69-hdparm.rules

@@ -0,0 +1,2 @@
+ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="1", \
+    RUN+="/usr/bin/hdparm -B 254 -S 0 /dev/%k"

usr/lib/udev/rules.d/71-nvidia.rules

@@ -0,0 +1,9 @@
+# Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind
+ACTION=="add|bind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
+    ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
+    TEST=="power/control", ATTR{power/control}="auto"
+
+# Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind
+ACTION=="remove|unbind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
+    ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
+    TEST=="power/control", ATTR{power/control}="on"

usr/lib/udev/rules.d/99-cpu-dma-latency.rules

@@ -0,0 +1 @@
+DEVPATH=="/devices/virtual/misc/cpu_dma_latency", OWNER="root", GROUP="audio", MODE="0660"

usr/share/X11/xorg.conf.d/20-touchpad.conf

@@ -0,0 +1,7 @@
+Section "InputClass"
+     Identifier "libinput touchpad catchall"
+     MatchIsTouchpad "on"
+     MatchDevicePath "/dev/input/event*"
+     Driver "libinput"
+     Option "Tapping" "True"
+EndSection

usr/share/glib-2.0/schemas/zz_melawy.ru.gnome.login-screen.gschema.override

@@ -0,0 +1,2 @@
+[org.gnome.login-screen]
+logo='/usr/share/pixmaps/melawy-linux.svg'