On Thu, 30 Sep 2004 13:25:46 -0400 (EDT)
John Heffner <jheffner@xxxxxxx> wrote:
> On Wed, 29 Sep 2004, John Heffner wrote:
> > On Wed, 29 Sep 2004, John Heffner wrote:
> > > Using iperf, I'm getting ~ the same speed to a slow p3 receiver (680
> > > Mbits) with TSO on or off right now. Haven't tried netperf.
> > Netperf does not work well for me (350 Mbits). Something to investigate.
> I tried again, and it does not even work this well. The connection hangs
> at the end in state FIN_WAIT1 with 101361 bytes in the Send-Q. It seems
> that the whole interface dies. (Maybe it's sending something invalid to
> the TSO engine?) When I bring the interface down then back up again, the
> connection terminates normally.
> Don't have this problem with iperf, strange.
Even stranger is that with current netperf tg3-->tg3 works perfectly fine
for me with TSO enabled. I'm getting clean 700Mbit transfers through
my D-Link DGS-1008T switch as long as netperf doesn't do something silly
like use tiny send/receiver buffers.
I've never had a transfer stall either.
Please help debug this John since I'm not seeing this here.