John Heffner wrote:
Ben Greear wrote:
I just tried turning off my explicit SO_SNDBUF/SO_RCVBUG settings in
my app,
and the connection ran very poorly through a link with even a small
bit of latency (~2-4ms I believe).
I often run at full gigabit or faster with latencies of 100+ ms. Can
you give a bit more detail?
I'm doing non-blocking TCP sends, write sizes of around 64k, and I'm
doing this to/from the same system with the send-to-self patch.
I am running full-duplex (930+Mbps tx + rx on both ports)
(this is about 980Mbps on the wire).
If I don't set the tx-queue % rx-queue sizes large (~4MB), it does not
perform well when running through my latency emulator.
If I do set them, then it runs just fine (barring an occassional
TCP throughput deadlock & ACK storm that is being worked on separately.)
If it works for other people, then it could be something else
weird about my setup. I have an easy work-around (been in the
code for years and years now), so I'm not too worried either way.
Thanks,
Ben
-John
--
Ben Greear <[EMAIL PROTECTED]>
Candela Technologies Inc http://www.candelatech.com
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