Subject: mc0 performance
To: None <port-macppc@netbsd.org>
From: Bruce O'Neel <edoneel@sdf.lonestar.org>
List: port-macppc
Date: 03/21/2005 13:06:30
Or maybe that should be poor mc0 performance.

There was a thread last Aug about mc0 performance

http://mail-index.netbsd.org/port-macppc/2004/08/26/0010.html

I just installed a 7300 and boy does mc0 run badly.
On a good scp I get 100k/sec and only 50% packet loss.  My guess
given that many folks don't have this is that it might be a 
subversion specific problem with mc0, ie, some MACE chips work
correctly with the netbsd driver and some don't.  Or, as others
guessed it might be a problem with the ethernet negotiation.  In my
case I swapped cables and switches with little effect.  Also, interestingly
enough, Ethertalk in MacOS 9 ran very badly as well so maybe it's specific
to this bit of hardware.  TCP/IP ran ok though in MacOS 9.

Anyway, just for grins, I tried the recommendations about changing
the driver and all that did was up the packet loss by another 50%
to 100%, so that wasn't quite the right direction.  Rather than spending
hours on this though I'll probalbly just end up with a 100baseT PCI
board.

cheers

bruce

-- 
edoneel@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org