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Re: Why aren't people changing their subject lines when threads drift?


From: Michael Shields <shields () crosslink net>
Date: Mon, 29 Jul 1996 13:51:55 +0000

At 1996-07-27 01:54 +0000, Alan Hannan wrote:
] Ping times only correlate to available bandwidth when congestion is bad.
] Otherwise these two factors are militantly unrelated to each other.

  Agreed very much.  However, ping times can be used as latency
  determination metrics.

And latency is disproportionately important when you're concerned only with
HTTP performance.

However, pings *can* be used to measure bandwidth, by sending multiple
sizes of ping and measuring the difference in response times between small
and large pings.  On a graph of ping size vs. response time, you'd see the
y-intercept representing base latency and the slope representing bandwidth.
This is how bing does its work.

--
Shields, CrossLink.


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