On Tue, 26 May 1998 20:46:21 -0700  Jason Thorpe wrote:

>  Matt Thomas <matt@3am-software.com> wrote:
>
>  > matt@baker> mips.ttcp -t -s -f m -n 8192 -u 10.16.176.70
>  > ttcp-t: buflen=8192, nbuf=8192, align=16384/0, port=5001  udp  -> 10.16.176.70
>  > ttcp-t: socket
>  > ttcp-t: 67108864 bytes in 12.60 real seconds = 40.63 Mbit/sec +++
>  > ttcp-t: 8198 I/O calls, msec/call = 1.57, calls/sec = 650.62
>  > ttcp-t: 0.2user 12.3sys 0:12real 99% 0i+0d 0maxrss 0+2pf 0+144csw
> 
> Lot of system time, but that could be lots of things.  What does "ping"
> latency look like?

This compares favorably with Ultrix 4.4 between two 5000/260s (R4400's):

 mel132:~ 2> ./ttcp -t -s -f m -n 8192 -u 144.136.33.70
 ttcp-t: buflen=8192, nbuf=8192, align=16384/0, port=5001  udp  -> 144.136.33.70
 ttcp-t: socket
 ttcp-t: 67108864 bytes in 11.66 real seconds = 43.93 Mbit/sec +++
 ttcp-t: 8198 I/O calls, msec/call = 1.46, calls/sec = 703.32
 ttcp-t: 0.0user 9.5sys 0:11real 81% 30i+56d 17maxrss 0+0pf 0+979csw

This is between two reasonably busy machines connected via a Cisco
concentrator.  I'll try again tonight when the machines should be idle,
and let you know if performance is any better.

>  > Slow compared to my alphas but sure the Ethernet its on.  Tomorrow
>  > I get to see if I can boot and run diskless over fddi.
> 
> How does this device do under Ultrix or OSF/1 (if you have any DECstations
> running OSF/1, that is :-)

I as said in an earlier email, DECstations can't boot via mop over fddi,
but I don't know about tftp.

Simon.