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Measure RTT ping time and subtract best measured latency from results. - #1

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ckolivas wants to merge 1 commit into
proofofmike:mainfrom
ckolivas:rtt-ping-compensation
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Measure RTT ping time and subtract best measured latency from results.#1
ckolivas wants to merge 1 commit into
proofofmike:mainfrom
ckolivas:rtt-ping-compensation

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Port the ICMP RTT compensation from the standalone str_race prototype into the modular collector: probe each pool host with system ping, snapshot the shortest RTT at notify time, and rank races on estimated send time (recv - RTT/2) so path delay does not dominate the vantage ranking.

Preserves full-template console announcements, live POST/local sinks, and adds unit coverage for offset correction and late-arrival recount.

AI slop courtesy of Grok 4.5

Port the ICMP RTT compensation from the standalone str_race prototype into
the modular collector: probe each pool host with system ping, snapshot the
shortest RTT at notify time, and rank races on estimated send time
(recv - RTT/2) so path delay does not dominate the vantage ranking.

Preserves full-template console announcements, live POST/local sinks, and
adds unit coverage for offset correction and late-arrival recount.
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