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Date:      Fri, 07 Mar 2003 02:21:50 +0900
From:      Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To:        Andrew Gallatin <gallatin@cs.duke.edu>
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
Message-ID:  <ybs65qwjtqp.wl@ett.sat.t.u-tokyo.ac.jp>
In-Reply-To: <15975.32565.418398.641886@grasshopper.cs.duke.edu>
References:  <200303060506.h2656iVe047820@repoman.freebsd.org> <ybs7kbcjut4.wl@ett.sat.t.u-tokyo.ac.jp> <15975.32565.418398.641886@grasshopper.cs.duke.edu>

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At Thu, 6 Mar 2003 12:02:45 -0500 (EST),
Andrew Gallatin wrote:
> Just out of curiousity, what sort of TCP bandwidth do you see with
> ethernet-over-firewire as measured by netperf or netpipe?

I have only tcpblast and spray number now. If you want to know the
number of netperf or netpipe, I'll try tomorrow.

# ifconfig fwe0
fwe0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        inet 10.1.1.1 netmask 0xff000000 broadcast 10.255.255.255
        inet6 fe80::c0:d0ff:fef7:6de4%fwe0 prefixlen 64 scopeid 0x6 
        ether 02:c0:d0:f7:6d:e4
        ch 1 dma 0

# tcpblast 10.1.1.2 9000| tail -1
Throughput  =  211862.1 kbit/s  =  26482758.6 kByte/s  =  25.9 MByte/s

# spray -l 1460 -c 600 10.1.1.2 
sending 600 packets of lnth 1462 to 10.1.1.2 ...
        in 0.03 seconds elapsed time
        no packets dropped
Sent:   21577 packets/sec, 30805.5K bytes/sec
Rcvd:   21577 packets/sec, 30805.5K bytes/sec

If you are interested in fast data transfer, you should use
asynchronous request directly as SBP2.

# dd if=/dev/da0 of=/dev/null bs=1m count=100
100+0 records in
100+0 records out
104857600 bytes transferred in 3.231715 secs (32446425 bytes/sec)

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html



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