====== Environment Variables ======

  * Mesa: https://docs.mesa3d.org/envvars.html
  * VKD3D: https://github.com/HansKristian-Work/vkd3d-proton#environment-variables
  * NVIDIA: https://download.nvidia.com/XFree86/Linux-x86_64/535.54.03/README/openglenvvariables.html

====== Global ======

  * :!: 2023/12/12: ''STAGING_WRITECOPY=1'' breaks Wine
  * 2024/02/08: fd esync errors were noticed and have been at random times in the past; disable esync

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

<code>
# 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'

# VKD3D
export VKD3D_CONFIG='dxr'

# 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</code>

====== NVIDIA ======

<code>
# 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'</code>

===== Other =====

<code>__GL_YIELD='USLEEP'</code>
<code>__GL_SYNC_TO_VBLANK='0'</code>
<code>__GL_LOG_MAX_ANISO='4'</code>
<code>__GL_MaxFramesAllowed='1'</code>

====== Permissions ======

  * 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?

===== RT Priority Permissions =====

  * :!: This makes the assumption that the current user is also part of a group with the same name ((2023: This is the case for Fedora 39, openSUSE TW, and Ubuntu 23.10))
  * Verify groups with the ''groups'' command

  groups

  sudo mkdir -p '/etc/security/limits.d' && 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'

==== Verify ====

  * Default: ''0''
  * Ideal: ''94''

  ulimit -r

===== Increase Open Files Limit =====

  * For Wine to be able to use the ''WINEESYNC'' environment variable optimally

  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'

==== Verify ====

  * Default: ''524288''
  * Ideal: ''1048576''

  ulimit -Hn