• Environment Variables primarily useful for Wine

• https://docs.mesa3d.org/envvars.html
• https://github.com/HansKristian-Work/vkd3d-proton#environment-variables

sudo -e '/etc/profile.d/99-wine-tweaks.sh'

# Staging
export STAGING_RT_PRIORITY_SERVER='90'
export STAGING_RT_PRIORITY_BASE='90'
export STAGING_WRITECOPY='1'
export STAGING_SHARED_MEMORY='1'

# Large Address Aware
export WINE_LARGE_ADDRESS_AWARE='1'
export PROTON_FORCE_LARGE_ADDRESS_AWARE='1'

# Esync and Fsync
export WINEESYNC='1'
export WINEFSYNC='1'
export WINEFSYNC_FUTEX2='1'

# Intel MKL for AMD CPU
export MKL_DEBUG_CPU_TYPE='5'
export MKL_ENABLE_INSTRUCTIONS='AVX2'

# Mesa
export VAAPI_MPEG4_ENABLED='1'

# VKD3D
export VKD3D_CONFIG='dxr,dxr11'

# Proton-GE
export DXVK_ASYNC='1'

# Logging
export DXVK_LOG_LEVEL='none'
export WINEDEBUG='-all'
export VKD3D_DEBUG='none'
export VKD3D_SHADER_DEBUG='none'

# End

• https://download.nvidia.com/XFree86/Linux-x86_64/515.57/README/openglenvvariables.html

# NVIDIA
export __GL_ALLOW_UNOFFICIAL_PROTOCOL='1'
export __GL_SHADER_DISK_CACHE='1'
export __GL_SHADER_DISK_CACHE_SKIP_CLEANUP='1'
export __GL_IGNORE_GLSL_EXT_REQS='1'
export __NV_SIGNED_LOAD_CHECK='none'
export __GL_THREADED_OPTIMIZATIONS='1'

# NVAPI
export DXVK_ENABLE_NVAPI='1'
export PROTON_ENABLE_NVAPI='1'

__GL_YIELD='USLEEP'

__GL_SYNC_TO_VBLANK='0'

__GL_LOG_MAX_ANISO='4'

__GL_MaxFramesAllowed='1'

• https://docs.mesa3d.org/envvars.html#r600-driver-environment-variables

R600_DEBUG='nirsb,nir,unsafemath'

• https://docs.mesa3d.org/envvars.html#core-mesa-environment-variables

mesa_glthread='true'

MESA_NO_ERROR='1'

MESA_DEBUG='1'

LIBGL_DEBUG='verbose'

MANGOHUD='1' MANGOHUD_CONFIG='full'

MANGOHUD='1' MANGOHUD_CONFIG='full' %command%

MANGOHUD='1' MANGOHUD_CONFIG='full,font_scale=2.0'

DXVK_HUD='full'

• https://docs.mesa3d.org/envvars.html#intel-driver-environment-variables

export INTEL_COMPUTE_CLASS='true'

• https://docs.mesa3d.org/envvars.html#radv-driver-environment-variables
• This is likely Vulkan for modern AMD GPUs
• 2023/01/08: RADV_PERFTEST=gpl caused Dota 2 to crash instantly on startup with Mesa 22.3.2

RADV_DEBUG='forcecompress'

RADV_PERFTEST='cswave32,gewave32,pswave32,dccmsaa,ngg_streamout,nggc,sam,rt,nv_ms'

RADV_TEX_ANISO='16'

RADV_FORCE_VRS='2x2'

RADV_PERFTEST='gpl'

• https://docs.mesa3d.org/envvars.html#radeonsi-driver-environment-variables
• This is likely OpenGL for AMD GPUs
• 2023/01/08: dccstore caused GNOME to have a black wallpaper with Mesa 22.3.2

AMD_DEBUG='dccstore'

AMD_DEBUG='w32ge,w32ps,w32psdiscard,w32cs,nggc'

• https://docs.mesa3d.org/drivers/zink.html
• TODO: Figure out if one or both of these are needed

MESA_LOADER_DRIVER_OVERRIDE='zink'

GALLIUM_DRIVER='zink'

• Requires AMDVLK
• This forces AMDVLK to be used instead of RADV
• See Vulkan - ArchWiki

# AMDVLK
#export AMD_VULKAN_ICD='RADV'
export DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1='1'
export VK_ICD_FILENAMES='/etc/vulkan/icd.d/amd_icd64.json'
export AMDVLK_ENABLE_DEVELOPING_EXT='all'

• For Wine to be able to use the STAGING_RT_PRIORITY_SERVER environment variable
• Allows rtprio up to 94 and nice up to 10
• May also allow Realtime priorities to be used with other applications
• TODO: Apparently you can use a username instead of a group?

• This makes the assumption that the current user is also part of a group with the same name ¹⁾
• openSUSE Tumbleweed puts users in the users group, and this command will need modifying
• Verify groups with the groups command

groups

echo -e "@CHANGEME - rtprio 94\n@CHANGEME - nice -10" | sudo tee '/etc/security/limits.d/99-realtime.conf' > '/dev/null' && sudo sed -i 's/'CHANGEME'/'$USER'/g' '/etc/security/limits.d/99-realtime.conf' && cat '/etc/security/limits.d/99-realtime.conf'

• Default: 0
• Esync: 94

ulimit -r

• For Wine to be able to use the WINEESYNC environment variable

sudo mkdir -p '/etc/systemd/system.conf.d' '/etc/systemd/user.conf.d' && echo -e "[Manager]\nDefaultLimitNOFILE=1048576" | sudo tee '/etc/systemd/system.conf.d/nofile.conf' > '/dev/null' && echo -e "[Manager]\nDefaultLimitNOFILE=1048576" | sudo tee '/etc/systemd/user.conf.d/nofile.conf' > '/dev/null' && cat '/etc/systemd/system.conf.d/nofile.conf' '/etc/systemd/user.conf.d/nofile.conf'

• Default: 524288
• Esync: 1048576

ulimit -Hn