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Date:      Thu, 31 May 2007 06:25:57 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        security <security@jim-liesl.org>
Cc:        freebsd-performance@freebsd.org
Subject:   Re: [Fwd: asymetric speeds over gigE link]
Message-ID:  <18014.41676.681948.864061@grasshopper.cs.duke.edu>
In-Reply-To: <465DE367.8070009@jim-liesl.org>
References:  <4652383E.9000302@jim-liesl.org> <18013.49538.356407.283631@grasshopper.cs.duke.edu> <465DE367.8070009@jim-liesl.org>

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security writes:
 >     The down side is that the best speed I got was around 362Mbps on a
 > gigE link (with netpipe).  I had hoped for better.

362Mb/s is way too low for 1GbE.

You might want to try a UDP test to isolate the bottleneck somewhat.
Try netperf  -tUDP_STREAM -Hmacpro02-m -- -m 1472 and see
what is reported for the transmit vs receive throughput.

Drew




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