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From: "Patrick Turley" <pturley@rocksteady.com>
To: lartc@vger.kernel.org
Subject: [LARTC] Bandwidth Control Tolerances
Date: Tue, 06 Jan 2004 00:23:09 +0000	[thread overview]
Message-ID: <002801c3d3eb$4634da30$6401a8c0@pturley> (raw)

I have measured the performance of HTB with iperf and found it to be very
close to expected (i.e., within 5%). I have a colleague who is measuring the
performance by ftp'ing large files and recording the time required to make
the transfer. He is seeing an average throughput that is nearly 10% away
from the theoretical, with occasional excursions to nearly 30%.

My colleague is now questioning the quality of the traffic control
algorithms and wondering two things:

1) What tolerance can we guarantee and advertise?

2) Can the tolerance be improved, since the values he has measured are
unacceptable?

I believe that my colleague's measurements are unusable. It would help me
greatly if anyone who is knowledgeable on these points could respond -
either agreeing or disagreeing with me (either would be helpful).

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             reply	other threads:[~2004-01-06  0:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-06  0:23 Patrick Turley [this message]
2004-01-06 17:20 ` [LARTC] Bandwidth Control Tolerances Martin A. Brown
2004-01-06 18:02 ` Patrick Turley
2004-01-06 18:02 ` Patrick Turley
2004-01-06 18:03 ` Patrick Turley
2004-01-07 17:36 ` Stef Coene

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