[netperf-talk] HELP:Regarding iANS test using netperf

[jiangyouu]

HELP:Regarding iANS  test using netperf 

Hi,friends:

 As part of our project we needto use netperf tool to check the iANS's 
performance.Here comes the topology.

    IO SERVER-----------(two kilomega twisted pair --------CISCO4506
 (with large storage)      wire,bonding by iANS)               | | |
                                                               | | |
                                                               | | |
                                                               | | |
One of client node------(single kilomega twisted pair)---------  | |
One of client node------(single kilomega twisted pair)-----------  |
.    .   .                                                         |
.    .   .                                                         |
.    .   .                                                         |
One of client node-----(single kilomega twisted pair)--------------
 
 
*******************************************************************
 
First I test one IO server to one client node,the result as below
(IO server set to be test-server)
[root at rack64 src]#  netperf -H 192.168.77.8 -l 60
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 
(192.168.77.8) port 0 AF_INET
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  
 87380  16384  16384    59.99     904.44   

That looks like OK.
 
But when I try to use two client nodes 'netperf' the test-server in the same 
time ,the results comes like this :
 
[root at rack61 netperf-2.4.1]#  netperf -H 192.168.77.8 -l 60
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 
(192.168.77.8) port 0 AF_INET
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  
 87380  16384  16384    59.99     470.13   
 
[root at rack60 netperf-2.4.1]#   netperf -H 192.168.77.8 -l 60
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to xinnode3 
(192.168.77.8) port 0 AF_INET
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  
 87380  16384  16384    60.00     473.04   
 
 
************************************************************

The IO server  suppose to be a powerfull one which can provide 2000 bits/sec,
but according to the test result,it just about 940 bits/sec.
 
what can I do ?
 
 
(I am not good at English  , please forgive my discourtesy)
 
 
Best Wishes!!!
 
 
                                                   John 
                                              
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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