Subject: Re: de0 on 164LX gives poor throughput
To: Paul H. Anderson <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 04/09/1999 18:23:54
On Fri, Apr 09, 1999 at 12:05:00PM -0400, Paul H. Anderson wrote:
> Has anyone seen this on alphas or other platforms? Does anyone have
> reasonable suggestions for other things to try? Mike has been looking at
> driver errors, and we seem to be seeing CRC errors on 1 in about every 20
> packets. No clue if this is normal or not.
This is certainly not normal !
> Am I having problems with full vs half duplex? How do I check?
Maybe. 'ifconfig -a' will tell you which media is used.
Are your machines connected throuh a HUB or a switch ?
> All of the machines report:
> de0: abnormal interrupt: transmit underflow (raising TX threshold to 96|256)
> de0: abnormal interrupt: transmit underflow (raising TX threshold to 128|512)
> de0: abnormal interrupt: transmit underflow (raising TX threshold to 160|1024)
> somewhere near boot time. Dunno if this is related or not.
I get this on my PCs too, but it doesn't seem to hurt performances
once the threshold has been raised enouth.
Manuel Bouyer <email@example.com>