|author||Randall Stewart <rrs@FreeBSD.org>||2021-10-22 11:10:28 +0000|
|committer||Randall Stewart <rrs@FreeBSD.org>||2021-10-22 11:10:28 +0000|
tcp: Add hystart-plus to cc_newreno and rack.
TCP Hystart draft version -03: https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-hystartplusplus Is a new version of hystart that allows one to carefully exit slow start if the RTT spikes too much. The newer version has a slower-slow-start so to speak that then kicks in for five round trips. To see if you exited too early, if not into congestion avoidance. This commit will add that feature to our newreno CC and add the needed bits in rack to be able to enable it. Reviewed by: tuexen Sponsored by: Netflix Inc. Differential Revision: https://reviews.freebsd.org/D32373
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