YueGuobin a699383933
perf: raise marker UDP receive buffer from ~208KB to 8MB
1000+ uBridge processes share a single UDP marker.sink endpoint. The
default kernel receive buffer (~208 KB) holds ~1000 datagrams — a
traffic burst can overflow it before the event loop drains them. Grow
it to 8 MB via setsockopt(SO_RCVBUF) so the kernel absorbs bursts
without silent packet loss.  UDP is unordered — buffer size does not
affect per-datagram latency, only burst-loss resilience.
2026-08-11 10:44:16 +08:00
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