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sobers_2002
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Joined: 16 Mar 2004
Posts: 1128
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 Posted: Thu Sep 21, 2006 9:14 am Post subject: ethernet problem?? |
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I get pathetic speeds when uploading from my sun machine. The downloads are fine and work at full speeds. Below is a netio benchmark, which shows there is some problem surely. Filesystem ext3 and kernel 2.6.17. The ethernet card is | Code: | | Sun Microsystems Computer Corp. Happy Meal (rev 01) |
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netio from a remote machine to sun machine. The remote machine performs just fine:
| Code: | netio -t sunmachine
NETIO - Network Throughput Benchmark, Version 1.26
(C) 1997-2005 Kai Uwe Rommel
TCP connection established.
Packet size 1k bytes: 7698 KByte/s Tx, 1039 KByte/s Rx.
Packet size 2k bytes: 9959 KByte/s Tx, 664 KByte/s Rx.
Packet size 4k bytes: 10062 KByte/s Tx, 103 KByte/s Rx.
Packet size 8k bytes: 11282 KByte/s Tx, 64535 Byte/s Rx.
Packet size 16k bytes: 10569 KByte/s Tx, 158 KByte/s Rx.
Packet size 32k bytes: 9944 KByte/s Tx, 165 KByte/s Rx.
Done.
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at the same time, the udp transfers work fine !
| Code: | netio -u 10.102.28.10
NETIO - Network Throughput Benchmark, Version 1.26
(C) 1997-2005 Kai Uwe Rommel
UDP connection established.
Packet size 1k bytes: 10470 KByte/s (0%) Tx, 9665 KByte/s (0%) Rx.
Packet size 2k bytes: 10638 KByte/s (0%) Tx, 11411 KByte/s (0%) Rx.
Packet size 4k bytes: 11569 KByte/s (0%) Tx, 11654 KByte/s (0%) Rx.
Packet size 8k bytes: 11579 KByte/s (0%) Tx, 11654 KByte/s (0%) Rx.
Packet size 16k bytes: 11509 KByte/s (0%) Tx, 11655 KByte/s (0%) Rx.
Packet size 32k bytes: 10746 KByte/s (7%) Tx, 11702 KByte/s (0%) Rx.
Done.
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What could be the issue???
thnx
Saurabh
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Last edited by sobers_2002 on Mon Sep 25, 2006 4:23 pm; edited 1 time in total |
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Dizzutch
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Joined: 09 Nov 2004
Posts: 463
Location: Worcester, MA
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| Posted: Thu Sep 21, 2006 1:34 pm Post subject: |
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I had a similar issue on my Sun box running Solaris, turned out that a patch revision had installed some drivers that were just killing the card, for every packet sent and recieved, 4 would come in with a wrong checksum and be discarded.
Perhaps it's related? I had the same card. Try rolling back the driver. especially if you have recently upgraded your kernel.
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sobers_2002
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