Re: [quicwg/base-drafts] Limit CWND increase in slow start (#3232)

[Junho Choi <[e-mail]>]

junhochoi commented on this pull request.



> @@ -1368,7 +1377,15 @@ acked_packet from sent_packets.
        return
      if (congestion_window < ssthresh):
        // Slow start.
-       congestion_window += acked_packet.size
+       if (pacing):
+         congestion_window += acked_packet.size
+       else:
+         // If pacing is not used, limit the increase to
+         // 2*max_datagram_size per ACK as described in
+         // {{?RFC3465}}
+         if (cwnd_increase < 2 * max_datagram_size):
+           cwnd_increase += bytes_acked
+           congestion_window += bytes_acked

See mine at https://github.com/quicwg/base-drafts/pull/3232#discussion_r345506253
Basically same approach as yours. Note that I removed `if` and use `max()` instead of `min()`. I think either way works fine.

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