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<DIV><BR><STRONG><U><FONT color=#0000ff>HELP:Regarding iANS test using netperf</FONT></U></STRONG> </DIV>
<DIV><BR>Hi,friends:</DIV>
<DIV><BR> As part of our project we needto use netperf tool to check the iANS's </DIV>
<DIV>performance.Here comes the topology.</DIV>
<DIV><BR> IO SERVER-----------(two kilomega twisted pair --------CISCO4506<BR> (with large storage) wire,bonding by iANS) | | |<BR> | | |<BR> | | |<BR> | | |<BR>One of client node------(single kilomega twisted pair)--------- | |<BR>One of client node------(single kilomega twisted pair)----------- |<BR>. . . |<BR>. . . |<BR>. . . |<BR>One of client node-----(single kilomega twisted pair)--------------</DIV>
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<DIV>*******************************************************************</DIV>
<DIV> </DIV>
<DIV>First I test one IO server to one client node,the result as below<BR>(IO server set to be test-server)</DIV>
<DIV>[root@rack64 src]# netperf -H 192.168.77.8 -l 60<BR>TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 </DIV>
<DIV>(192.168.77.8) port 0 AF_INET<BR>Recv Send Send <BR>Socket Socket Message Elapsed <BR>Size Size Size Time Throughput <BR>bytes bytes bytes secs. 10^6bits/sec </DIV>
<DIV> 87380 16384 16384 59.99 904.44 </DIV>
<DIV><BR>That looks like OK.</DIV>
<DIV> </DIV>
<DIV>But when I try to use two client nodes 'netperf' the test-server in the same <BR>time ,the results comes like this :</DIV>
<DIV> </DIV>
<DIV>[root@rack61 netperf-2.4.1]# netperf -H 192.168.77.8 -l 60<BR>TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 </DIV>
<DIV>(192.168.77.8) port 0 AF_INET<BR>Recv Send Send <BR>Socket Socket Message Elapsed <BR>Size Size Size Time Throughput <BR>bytes bytes bytes secs. 10^6bits/sec </DIV>
<DIV> 87380 16384 16384 59.99 470.13 </DIV>
<DIV> </DIV>
<DIV>[root@rack60 netperf-2.4.1]# netperf -H 192.168.77.8 -l 60<BR>TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 </DIV>
<DIV>(192.168.77.8) port 0 AF_INET<BR>Recv Send Send <BR>Socket Socket Message Elapsed <BR>Size Size Size Time Throughput <BR>bytes bytes bytes secs. 10^6bits/sec </DIV>
<DIV> 87380 16384 16384 60.00 473.04 </DIV>
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<DIV>************************************************************</DIV>
<DIV><BR>The IO server suppose to be a powerfull one which can provide 2000 bits/sec,<BR>but according to the test result,it just about 940 bits/sec.</DIV>
<DIV> </DIV>
<DIV>what can I do ?</DIV>
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<DIV>(I am not good at English , please forgive my discourtesy)</DIV>
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<DIV>Best Wishes!!!</DIV>
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<DIV> John </DIV>
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