Subject: Re: pcmcia ep0 performance awful in 1.6/-current
To: Ben Harris <>
From: Nathan J. Williams <>
List: current-users
Date: 07/09/2002 12:02:25
Ben Harris <> writes:

> Hmm.  What does "netstat -p ip" have to say about incoming fragments
> (especially dropped after timeout vs received)?  It sounds as if the network
> card is losing fragments, which usually means its receive buffer is too
> small.

8747 fragments received, 0 fragments dropped (with -r and -w set to
4096). I don't want to wedge the machine remotely to test the other
configuration, so that'll have to wait.

> >Server is a 1.5ZC Alpha pc164 with a tlp0 set to 100baseTX-FDX, and
> >there's a little 5-port 10/100 switch between them.
> What speed is ep0 running at?  If it's at 10 Mbit/s, I wonder how much
> buffering the switch has.

Yes, it's running at 10 Mbit/s, half-duplex. The switch is a GigaFast
EZ500-S, if that tells you anything.

        - Nathan