On Tue, Feb 28, 2006 at 09:33:38PM -0500, John Zielinski wrote:
> Rick Jones wrote:
> >And if you add the test-specific -D option?
>
> No difference. I have TCP_NODELAY in my Samba config and copying files
> from the server is painfully slow. That's what got me started on all
> these tests.
Y
Problem solved. It was a bad network card. When I swapped cards
between two machines the problem followed the card. It's odd how the
problem only popped up when the packet size reached a certain point.
Thanks for all your help.
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Rick Jones wrote:
And if you add the test-specific -D option?
No difference. I have TCP_NODELAY in my Samba config and copying files
from the server is painfully slow. That's what got me started on all
these tests.
BTW, did someone already suggest disabling TSO if it happens to be
enable
John Zielinski wrote:
Rick Jones wrote:
8KB socket buffers, 8KB writes to the socket or both?
8KB write to the socket with an 8KB read on the other end. TCP socket
buffers at default.
OK.
I'm using netperf now since the numbers were about
the same and netperf has more options.
Good
Rick Jones wrote:
8KB socket buffers, 8KB writes to the socket or both?
8KB write to the socket with an 8KB read on the other end. TCP socket
buffers at default. I'm using netperf now since the numbers were about
the same and netperf has more options.
netperf -t TCP_STREAM -H -- -s 128K
John Zielinski wrote:
Rick Jones wrote:
What does your quick and dirty test program use for socket buffer
sizes and/or send sizes? What does the performance look like with a
netperf TCP_STREAM test of various socket buffer and send sizes?
For my test program I used a 8K send and receive buf
Rick Jones wrote:
What does your quick and dirty test program use for socket buffer
sizes and/or send sizes? What does the performance look like with a
netperf TCP_STREAM test of various socket buffer and send sizes?
For my test program I used a 8K send and receive buffers. The socket
buffers
What does your quick and dirty test program use for socket buffer sizes
and/or send sizes? What does the performance look like with a netperf
TCP_STREAM test of various socket buffer and send sizes?
The comparison might help find the extent to which application behaviour
matters.
rick jones
YOSHIFUJI Hideaki wrote:
What kind of NIC are you using?
All my machines here now have VIA Velocity NICs in them. The other two
machines work perfectly.
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In article <[EMAIL PROTECTED]> (at Mon, 27 Feb 2006 22:34:48 -0500), John
Zielinski <[EMAIL PROTECTED]> says:
> I'm having a strange problem with my server machine. When I use an MTU
> of 9000 I get a throughput of only 45-65Mbit/sec not counting TCP/IP
> overhead. Receiving I get around 310M
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