enricobuehler
d86896da16
ci / rust (push) Has been cancelled
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>
12 lines
690 B
Plaintext
12 lines
690 B
Plaintext
# Larger UDP socket buffers for clean 4K/5K streaming.
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#
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# A single high-resolution frame is a burst (a 5120×1440 keyframe is ~130 packets sent at once),
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# which overflows the Linux default (~208 KB) — dropping packets and, under infinite-GOP, freezing
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# the client decode on one frame. punktfunk requests 8 MB SO_SNDBUF/SO_RCVBUF, but the kernel
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# clamps to these caps; raise them on the HOST for send-side headroom (the host logs a warning
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# when the grant is small). macOS clients need no tuning (their default cap is already multi-MB).
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#
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# Install: sudo cp scripts/99-punktfunk-net.conf /etc/sysctl.d/ && sudo sysctl --system
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net.core.wmem_max = 8388608
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net.core.rmem_max = 8388608
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