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From: Andrew Gallatin <gallatin@cs.duke.edu>
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Date: Thu, 6 Mar 2003 12:02:45 -0500 (EST)
To: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
Cc: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/dev/firewire firewire.c firewire.h firewirereg.h fwdev.c fwohci.c if_fwe.c if_fwevar.h
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Hidetoshi Shimokawa writes:
 > At Thu, 6 Mar 2003 11:22:15 -0500,
 > Andrew Gallatin wrote:
 > > 
 > > Hidetoshi Shimokawa [simokawa@FreeBSD.org] wrote:
 > > 
 > > >   Improve if_fwe performance.
 > > <...>
 > > 
 > > What's the MTU of firewire?  Specifically, is there any reason that
 > > you could not run with jumbo (9K) frames for performance?
 > 
 > The maximum payload is 2048 for S400 and 4096 for S800.
 > I have only S400 hardware now.
 > 

Ah, I see.  That makes sense.

Just out of curiousity, what sort of TCP bandwidth do you see with
ethernet-over-firewire as measured by netperf or netpipe?

Drew

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