Re: [quicwg/base-drafts] A pacing algorithm (#3630)

Martin Thomson <notifications@github.com> Mon, 18 May 2020 00:51 UTC

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Date: Sun, 17 May 2020 17:51:18 -0700
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] A pacing algorithm (#3630)
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@martinthomson commented on this pull request.



> +as the one in this document, that rate can be computed by averaging the
+congestion window over the round-trip time. Expressed as a rate in bytes:
+
+~~~
+rate = N * congestion_window / smoothed_rtt
+~~~
+
+Or, expressed as an inter-packet interval:
+
+~~~
+interval = smoothed_rtt * packet_size / congestion_window / N
+~~~
+
+Using a value for `N` that is small, but at least 1 (for example, 1.25) ensures
+that short-term variations in round-trip time or scheduler delays don't result
+in under-utilization of the congestion window.

Not really comfortable with saying "ack-clocked" without a definition.  Can you say something else?

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