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07-16-2008 04:40 AM
07-16-2008 04:40 AM
netperf - UDP_STREAM close to 100% packet drops
Hi ,
I am using netperf 2.4.4 on 2 linux boxes.
TCP_STREAM tests shows a throughput of 93Mb/sec.
Problem is with the UDP_STREAM, where the packet drop rate is close to 100% as shown below
netperf -t UDP_STREAM -H -l 20 -- -s 128K -S 128K -m 32K -M 32K
UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 16.138.181.45 (16.138.181.45) port 0 AF_INET : histogram : interval : demo
Socket Message Elapsed Messages
Size Size Time Okay Errors Throughput
bytes bytes secs # # 10^6bits/sec
262142 32768 20.00 72914 0 955.61
262142 20.00 3 0.04
Any clues for why this behavior?
Thank you
Mahesh
I am using netperf 2.4.4 on 2 linux boxes.
TCP_STREAM tests shows a throughput of 93Mb/sec.
Problem is with the UDP_STREAM, where the packet drop rate is close to 100% as shown below
netperf -t UDP_STREAM -H
UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 16.138.181.45 (16.138.181.45) port 0 AF_INET : histogram : interval : demo
Socket Message Elapsed Messages
Size Size Time Okay Errors Throughput
bytes bytes secs # # 10^6bits/sec
262142 32768 20.00 72914 0 955.61
262142 20.00 3 0.04
Any clues for why this behavior?
Thank you
Mahesh
1 REPLY 1
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07-17-2008 09:19 AM
07-17-2008 09:19 AM
Re: netperf - UDP_STREAM close to 100% packet drops
Over in the origial, misplaced, post in the hpux forum I speculate that this is an issue with speed-mismatch between the sender at 1G and (something between the sender and) the reciever at 100BT.
there is no rest for the wicked yet the virtuous have no pillows
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