netdev - Re: tcp bw in 2.6

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Message-ID: <47025E6F.8080503@psc.edu>
Date:	Tue, 02 Oct 2007 11:06:23 -0400
From:	John Heffner <jheffner@....edu>
To:	lm@...mover.com, Linus Torvalds <torvalds@...ux-foundation.org>,
	davem@...emloft.net, wscott@...mover.com, netdev@...r.kernel.org
Subject: Re: tcp bw in 2.6

Larry McVoy wrote:
> A short summary is "can someone please post a test program that sources
> and sinks data at the wire speed?"  because apparently I'm too old and
> clueless to write such a thing.

Here's a simple reference tcp source/sink that's I've used for years. 
For example, on a couple gigabit machines:

$ ./tcpsend -t10 dew
Sent 1240415312 bytes in 10.033101 seconds
Throughput: 123632294 B/s

   -John


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