On Thu, 2016-03-03 at 19:06 +0100, Bendik Rønning Opstad wrote: > Redundant Data Bundling (RDB) is a mechanism for TCP aimed at reducing > the latency for applications sending time-dependent data. > > Latency-sensitive applications or services, such as online games, > remote control systems, and VoIP, produce traffic with thin-stream > characteristics, characterized by small packets and relatively high > inter-transmission times (ITT). When experiencing packet loss, such > latency-sensitive applications are heavily penalized by the need to > retransmit lost packets, which increases the latency by a minimum of > one RTT for the lost packet. Packets coming after a lost packet are > held back due to head-of-line blocking, causing increased delays for > all data segments until the lost packet has been retransmitted.
Acked-by: Eric Dumazet <eduma...@google.com> Note that RDB probably should get some SNMP counters, so that we get an idea of how many times a loss could be repaired. Ideally, if the path happens to be lossless, all these pro active bundles are overhead. Might be useful to make RDB conditional to tp->total_retrans or something.
