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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Yes, for 1500 MTU these aren$B!G(Jt too
bad. One thing to note, using the TCP_STREAM option does not take
advantage of zero-copy and possibly checksum offload on the transmit
side. You should use the TCP_SENDFILE option for that. We typically
use options such as:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> netperf
–c –C –H 192.168.1.1 –t TCP_STREAM -- -s131072 –S131072 –m65536<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> netperf
–c –C –H 192.168.1.1 –t UDP_STREAM -- -s131072 –S131072 –m8192 (if using jumbo
frames of 8982)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-Rick<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>MingLiu<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, November 08, 2007
2:32 AM<br>
<b><span style='font-weight:bold'>To:</span></b> kentaro;
linuxppc-embedded@ozlabs.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: ML405 gigabit
ethernet with kernel 2.6.23</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face=SimSun><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'><font size=1 face=Tahoma><span style='font-size:9.0pt;
font-family:Tahoma'>Dear Kentaro,<br>
<br>
> -------------------------------------------------------------<br>
> "netperf -H 192.168.1.1 -t TCP_STREAM" 110 Mbps<br>
> "netperf -H 192.168.1.1 -t UDP_STREAM" 210 Mbps<br>
> -------------------------------------------------------------<br>
<br>
Are these results the ones with or without Jumbo-frame enabled? If no, they are
quite good I think. The results from Montavista probably are the ones with
Jumbo-frame enabled. <br>
<br>
For anybody who has interest on this topic, I have recently an accepted paper
which has part of the content on this. The link is <a
href="http://web.it.kth.se/~mingliu/publications/co_design(icfpt07).pdf">http://web.it.kth.se/~mingliu/publications/co_design(icfpt07).pdf</a> and
in 6.2 section, I listed our measurement results. 300Mbps for TCP and 400Mbps
for UDP, with Jumbo-frame enabled. Unfortunately I did not explain the details
and detailed configurations on our case. So these results are only for your
reference.<br>
<br>
BR<br>
Ming<o:p></o:p></span></font></p>
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