From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Patrick Turley" Date: Tue, 06 Jan 2004 00:23:09 +0000 Subject: [LARTC] Bandwidth Control Tolerances Message-Id: <002801c3d3eb$4634da30$6401a8c0@pturley> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org 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). _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/