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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