Proton gamemode wrapper script

game.slice

# /etc/systemd/user/game.slice.d/99-resources.conf
[Unit]
Description=Game Slice

[Slice]
CPUWeight=2000
IOWeight=400
#MemoryLow=16G

gamemode

#!/bin/bash

# staging / development stuff not part of Proton
#export STAGING_RT_PRIORITY_SERVER=90
#export STAGING_RT_PRIORITY_BASE=50
#export STAGING_SHARED_MEMORY=1
#export STAGING_SHARED_MEMORY=0
#export PBA_DISABLE=1

# seems to be defaults now
#export WINEESYNC="${WINEESYNC:-1}"
#export WINEFSYNC="${WINEFSYNC:-1}"
#export WINEFSYNC_SPINCOUNT=10
#export PROTON_NO_FSYNC=1
#export WINEFSYNC_FUTEX2="${WINEFSYNC_FUTEX2:-1}"

# DLSS / Raytracing
#export PROTON_HIDE_NVIDIA_GPU=0
#export PROTON_ENABLE_NVAPI=1
#export VKD3D_CONFIG="${VKD3D_CONFIG:+,}dxr"

# debugging / logging
#export WINEDEBUG=-all
#export WINEDEBUG="+all,trace-all"
#export WINEDEBUG="+timestamp,+pid,+tid,+seh,+debugstr,+loaddll,+mscoree,+dxgi,+vulkan"
#export WINEDEBUG="+timestamp,+pid,+tid,+seh,+debugstr,+loaddll,+mscoree"
#export VKD3D_DEBUG=trace

# audio
#export PULSE_LATENCY_MSEC=60
export SDL_AUDIO_FREQUENCY=48000
export SDL_AUDIO_CHANNELS=6

# graphics
#export PROTON_USE_D9VK="${PROTON_USE_D9VK:-1}"
#export DXVK_CONFIG_FILE="${HOME}/.config/dxvk.conf"
export __GL_SHADER_DISK_CACHE_SKIP_CLEANUP=1

# memory
export PROTON_FORCE_LARGE_ADDRESS_AWARE=1
#export PROTON_HEAP_DELAY_FREE

# DLL overrides
#export WINEDLLOVERRIDES="overlay=d;winedbg.exe=d${WINEDLLOVERRIDES:+;$WINEDLLOVERRIDES}"

# Discord Rich Presence
export WINEDLLPATH="/opt/discord-rpc/bin64:/opt/discord-rpc/bin32${WINEDLLPATH:+:$WINEDLLPATH}"
export WINEDLLOVERRIDES="discord-rpc=n${WINEDLLOVERRIDES:+;$WINEDLLOVERRIDES}"

# Joystick hack, disable by default except when using PROTON_USE_JOYSTICK=1
[ "${PROTON_USE_JOYSTICK}" -eq "1" ] || export SDL_GAMECONTROLLER_IGNORE_DEVICES=0x044F/0xB10A,0x044F/0xB687

# fix sometimes needed for dynamic resolution to properly work
#export __GL_SYNC_TO_VBLANK=1

#export PROTON_DUMP_DEBUG_COMMANDS=1
echo "# $*" >>/tmp/gamemode.log
export >>/tmp/gamemode.log
case "$1" in
        */proton)
                STEAM_PPID=${PPID}
                (
                        for second in $(seq 1 30); do
                                echo "Waiting for wineserver child of ${STEAM_PPID}... (${second}s)" >>/tmp/gamemode.log
                                sleep 1
                                wspid=$(pgrep -P${STEAM_PPID} wineserver)
                                [ "${wspid}" -gt 0 ] && { schedtool -n -15 -I ${wspid}; exit; }
                        done
                ) &
                GAMEMODEAUTO="/usr/\$LIB/libgamemodeauto.so"
                export LD_PRELOAD="${GAMEMODEAUTO}${LD_PRELOAD:+":${LD_PRELOAD}"}"

                # Prevent fsync / sync for non-blocking writes
                EATMYDATA="/usr/\$LIB/libeatmydata.so"
                export LD_PRELOAD="${EATMYDATA}${LD_PRELOAD:+:$LD_PRELOAD}"
                ;;
        */_v2-entry-point)
                echo "Guessing we are running in bwrap mode" >>/tmp/gamemode.log
                (
                        for second in $(seq 1 30); do
                                echo "Waiting for wineserver... (${second}s)" >>/tmp/gamemode.log
                                sleep 1
                                wspid=$(pgrep wineserver)
                                [ "${wspid}" -gt 0 ] && { schedtool -n -15 -I ${wspid}; exit; }
                        done
                ) &

esac

exec systemd-run --user --same-dir --slice game.slice --scope "$@"