chore(appliance): sysctl drop-in for larger UDP buffers (4K/5K host send headroom)

The host warns when its UDP socket-buffer grant is small (Linux caps SO_SNDBUF at net.core.wmem_max, ~208 KB by default). Validated zero-loss at 5K even at that cap, but raising it gives send-side headroom for higher bitrates / concurrent sessions. Referenced from the headless-Steam appliance setup. macOS clients need no tuning. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-11 13:28:55 +00:00
parent 0f333460ec
commit d86896da16
2 changed files with 12 additions and 0 deletions
@@ -10,6 +10,7 @@
 #   sudo loginctl enable-linger $USER         # user services run without a graphical login
 #   sudo systemctl set-default multi-user.target   # don't auto-start the local gaming session
 #   sudo systemctl isolate multi-user.target       # stop it now (or reboot)
+#   sudo cp scripts/99-punktfunk-net.conf /etc/sysctl.d/ && sudo sysctl --system  # big UDP buffers (4K/5K)
 #
 # Install:
 #   mkdir -p ~/.config/systemd/user && cp scripts/punktfunk-steam-session.service ~/.config/systemd/user/