mirror of
https://github.com/ublue-os/bazzite.git
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feat(deck): Enable System76-Scheduler
Eliminates the need to have CAP_SYS_NICE on gamescope
This commit is contained in:
Kyle Gospodnetich
parent
ce3ad68dae
commit
50e98238da
@ -140,11 +140,6 @@ RUN rpm-ostree override replace --experimental --from repo=copr:copr.fedorainfra
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mesa-libglapi \
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mesa-vulkan-drivers
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# Remove system76-scheduler
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RUN rpm-ostree override remove system76-scheduler
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RUN rm -f /etc/systemd/user/com.system76.Scheduler.dbusproxy.service
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RUN rm -f /usr/bin/system76-scheduler-dbus-proxy
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# Remove steamdeck-kde-presets-desktop
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RUN rpm-ostree override remove steamdeck-kde-presets-desktop
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@ -202,10 +197,8 @@ RUN sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/_copr_ublue-os-akmods.repo
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systemctl enable jupiter-fan-control.service && \
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systemctl enable vpower.service && \
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systemctl enable ds-inhibit.service && \
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systemctl enable set-cfs-tweaks.service && \
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systemctl disable input-remapper.service && \
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systemctl --global disable ublue-update.timer && \
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setcap cap_sys_nice=+ep /usr/bin/gamescope && \
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rm -f /usr/etc/sddm.conf && \
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rm -rf \
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/tmp/* \
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@ -22,6 +22,8 @@ Bazzite is built from [ublue-os/main](https://github.com/ublue-os/main) and [ubl
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- Support for [Wallpaper Engine](https://www.wallpaperengine.io/en) on KDE.
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- [Distrobox](https://github.com/89luca89/distrobox) preinstalled with automatic updates for created containers.
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- Automated duperemove services for reducing the disk space used by wine prefix contents.
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- [System76-Scheduler](https://github.com/pop-os/system76-scheduler) preinstalled, providing automatic process priority tweaks to your focused application and keeping CPU time for background processes to a minimum.
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- Customized System76-Scheduler config with additional rules and CFS parameters from [Linux-TKG](https://github.com/Frogging-Family/linux-tkg).
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- Uses [Google's BBR TCP congestion control](https://github.com/google/bbr) by default.
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- [Input Remapper](https://github.com/sezanzeb/input-remapper) preinsalled and enabled (Available but default-disabled on the Deck variant)
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- Helpful first-start installer provides an easy way to install numerous applications and tweaks, including installing [CoreCtrl](https://gitlab.com/corectrl/corectrl) and [GreenWithEnvy](https://gitlab.com/leinardi/gwe).
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@ -34,8 +36,6 @@ Bazzite is built from [ublue-os/main](https://github.com/ublue-os/main) and [ubl
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Common variant available as `bazzite` and suitable for desktops and HTPCs.
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- Runs Steam and Lutris in a [custom Arch Linux OCI](https://github.com/ublue-os/bazzite-arch/) via Distrobox.
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- Ships with a ported version of [System76-Scheduler](https://github.com/pop-os/system76-scheduler), providing automatic process priority tweaks to your focused application and keeping CPU time for background processes to a minimum.
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- Customized System76-Scheduler config with additional rules and CFS parameters from [Linux-TKG](https://github.com/Frogging-Family/linux-tkg).
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- Option to automatically launch Steam in Big Picture Mode on boot for HTPCs.
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To rebase an existing system to this image:
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@ -63,8 +63,7 @@ Variant designed for usage as an alternative to SteamOS on the Steam Deck, avail
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- Comes with a default-disabled service for low-risk undervolting of the Steam Deck via [RyzenAdj](https://github.com/FlyGoat/RyzenAdj).
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- Exclusively uses ZRAM by default with the option to switch back to a swap file and set a custom size if desired (1GB by default).
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- BFQ I/O scheduler to prevent I/O starvation when installing games or during background duperemove processes.
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- CFS scheduler parameters from [Linux-TKG](https://github.com/Frogging-Family/linux-tkg) for increased performance.
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- TLS/SSL secured DNS and NTP by default. This is a handheld PC you're likely to use on random public networks after all.
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- TLS/SSL secured DNS and NTP by default <sup><sub>(This is a handheld PC you're likely to use on random public networks after all)</sub></sup>.
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- Applies SteamOS's kernel parameters and enables amd-pstate by default.
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To rebase an existing system to this image:
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88
system_files/deck/etc/system76-scheduler/config.kdl
Normal file
88
system_files/deck/etc/system76-scheduler/config.kdl
Normal file
@ -0,0 +1,88 @@
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// Version of the configuration file
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version "2.0"
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// Autogrouping nullifies nice priorities
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autogroup-enabled false
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// Latency profiles the kernel's Completely Fair Scheduler
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cfs-profiles enable=true {
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// The kernel-default values which are ideal for battery life and servers
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default latency=6 nr-latency=8 wakeup-granularity=1.0 bandwidth-size=5 preempt="voluntary"
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// TKG CFS parameters that make the desktop more responsive
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responsive latency=3 nr-latency=10 wakeup-granularity=0.5 bandwidth-size=3 preempt="full"
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}
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// Monitors and applies process priority adjustments
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process-scheduler enable=true {
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// How often to reload process assignments. 0 to disable
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refresh-rate 60
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// Enable realtime process priority adjustment with execsnoop
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execsnoop true
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// Preset process assignment profiles
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assignments {
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// Prevent crackling and distortion from the sound server
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sound-server nice=-15 sched=(fifo)49 io=(realtime)0 {
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"/usr/bin/pipewire"
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"/usr/bin/pipewire-pulse"
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"/usr/bin/jackd"
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}
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// Applications with realtime audio processing needs
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recording nice=-9 io=(best-effort)0
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// Enables pipewire process monitoring and assignments
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pipewire nice=-6 io=(best-effort)0
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// Video games
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games nice=-5 io=(best-effort)0
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// Desktop environments
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desktop-environment nice=-10 io=(best-effort)0
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// Foreground process profile
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foreground nice=0 io=(best-effort)0
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// Background process profile
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background nice=6 io="idle"
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// Session services belonging to the user
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session-services nice=9 io="idle" {
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include cgroup="/user.slice/*.service" parent="systemd"
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include cgroup="/user.slice/*/session.slice/*" parent="systemd"
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exclude cgroup="/user.slice/*app-dbus*"
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}
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// System services belonging to root
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system-services nice=12 io="idle" {
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include cgroup="/system.slice/*"
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}
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// Package management processes
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package-manager nice=15 sched="batch" io="idle"
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// CPU-intense background tasks
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batch nice=19 sched="idle" io="idle"
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}
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exceptions {
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include descends="chrt"
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include descends="gamemoderun"
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include descends="ionice"
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include descends="nice"
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include descends="taskset"
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include descends="schedtool"
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chrt
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dbus
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dbus-broker
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gamemoderun
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ionice
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nice
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rtkit-daemon
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systemd
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taskset
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schedtool
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}
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}
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@ -1,10 +0,0 @@
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[Unit]
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Description=Set CFS tweaks
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After=suspend.target hibernate.target hybrid-sleep.target suspend-then-hibernate.target
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[Service]
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ExecStart=/usr/bin/set-cfs-tkg-tweaks
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Type=oneshot
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[Install]
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WantedBy=multi-user.target suspend.target hibernate.target hybrid-sleep.target suspend-then-hibernate.target
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@ -1,63 +0,0 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0-only
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# Copyright (C) 2021 igo95862
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation, version 2.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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set -eu
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LATENCY_MS=3
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MIN_GRANULARITY_MS=0.3
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WAKEUP_GRANULARITY_MS=0.5
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MIGRATION_COST_MS=0.25
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BANDWIDTH_SIZE_MS=3
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NR_MIGRATE=64
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echo "Targeted preemption latency for CPU-bound tasks: ${LATENCY_MS}ms"
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echo "Minimal preemption granularity for CPU-bound tasks: ${MIN_GRANULARITY_MS}ms"
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echo "Wake-up granularity: ${WAKEUP_GRANULARITY_MS}ms"
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echo "Task migration cost: ${MIGRATION_COST_MS}ms"
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echo "Amount of runtime to allocate from global to local pool: ${BANDWIDTH_SIZE_MS}ms"
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echo "Number of tasks to iterate in a single balance run: ${NR_MIGRATE}"
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call_gawk() {
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printf '%s' "$(gawk 'BEGIN {print '"${1}"'}')"
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}
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NPROC="$(nproc)"
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# Linux uses this algorithm to multiply miliseconds
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MODIFIER="$( call_gawk "10 ** 6 * (1 + int(log(${NPROC}) / log(2)))" )"
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LATENCY_NS_FILE="/sys/kernel/debug/sched/latency_ns"
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MIN_GRANULARITY_NS_FILE="/sys/kernel/debug/sched/min_granularity_ns"
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WAKEUP_GRANULARITY_NS_FILE="/sys/kernel/debug/sched/wakeup_granularity_ns"
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MIGRATION_COST_NS_FILE="/sys/kernel/debug/sched/migration_cost_ns"
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BANDWIDTH_SIZE_US_FILE="/proc/sys/kernel/sched_cfs_bandwidth_slice_us"
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NR_MIGRATE_FILE="/sys/kernel/debug/sched/nr_migrate"
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if [ ! -f "$LATENCY_NS_FILE" ]; then
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echo "Detected kernel <5.13. Using legacy locations."
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LATENCY_NS_FILE="/proc/sys/kernel/sched_latency_ns"
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MIN_GRANULARITY_NS_FILE="/proc/sys/kernel/sched_min_granularity_ns"
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WAKEUP_GRANULARITY_NS_FILE="/proc/sys/kernel/sched_wakeup_granularity_ns"
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MIGRATION_COST_NS_FILE="/proc/sys/kernel/sched_migration_cost_ns"
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NR_MIGRATE_FILE="/proc/sys/kernel/sched_nr_migrate"
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fi
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printf '%s' "$( call_gawk "int(${LATENCY_MS} * ${MODIFIER})" )" > "$LATENCY_NS_FILE"
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printf '%s' "$( call_gawk "int(${MIN_GRANULARITY_MS} * ${MODIFIER})" )" > "$MIN_GRANULARITY_NS_FILE"
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printf '%s' "$( call_gawk "int(${WAKEUP_GRANULARITY_MS} * ${MODIFIER})" )" > "$WAKEUP_GRANULARITY_NS_FILE"
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printf '%s' "$( call_gawk "int(${MIGRATION_COST_MS} * ${MODIFIER})" )" > "$MIGRATION_COST_NS_FILE"
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printf '%s' "$( call_gawk "int(${BANDWIDTH_SIZE_MS} * 1000)" )" > "$BANDWIDTH_SIZE_US_FILE"
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printf '%s' "$NR_MIGRATE" > "$NR_MIGRATE_FILE"
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@ -99,6 +99,11 @@ screens:
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default: false
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packages:
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- Switch SteamOS-BTRFS config to EXT4: sudo -A just --unstable switch-to-ext4
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System76 Scheduler:
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description: Enables System76 scheduler
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default: true
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packages:
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- Enable System76 Scheduler: just --unstable enable-system76-scheduler
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Wallpaper Engine:
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description: Enables Wallpaper Engine
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default: true
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@ -30,6 +30,14 @@ get-steamcmd:
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tar -xvzf steamcmd.tar.gz -C ~/.steam
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rm /tmp/steamcmd.tar.gz
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enable-system76-scheduler:
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git clone https://github.com/maxiberta/kwin-system76-scheduler-integration.git --depth 1 /tmp/kwin-system76-scheduler-integration
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kpackagetool5 --type=KWin/Script -i /tmp/kwin-system76-scheduler-integration
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systemctl --user enable --now com.system76.Scheduler.dbusproxy.service
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systemctl enable --now com.system76.Scheduler.service
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kcmshell5 kcm_kwin_scripts
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rm -rf /tmp/kwin-system76-scheduler-integration
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install-nix:
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curl -s https://raw.githubusercontent.com/dnkmmr69420/nix-installer-scripts/main/installer-scripts/silverblue-nix-installer.sh | bash
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