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From: tep@tots.UUCP (Tom Perrine)
Newsgroups: comp.protocols.tcp-ip
Subject: PC-NFS performance
Summary: Is PC-NFS fast enough?
Message-ID: <174@tots.UUCP>
Date: 27 Aug 90 23:37:36 GMT
Reply-To: tep@tots.Logicon.COM (Tom Perrine)
Organization: Logicon, Inc., San Diego, California
Lines: 30


I am working on a system that will require "real-time" data transfer
from a Sun IPC to a 386 PC-clone (20 or 25 MHz) via Ethernet. For us,
in this case, "real-time" means 500-1000 byte packets, 10 per second,
from the Sun to the PC. The PC and Sun will be on a dedicated
Ethernet, i.e.  *nothing* else on that wire.

I'm planning to use UDP to communicate between the Sun-side
application and an application on the PC written using the PC-NFS
Programmer's Toolkit.

Unfortunately, someone has convinced people around here that PC-NFS
"won't do real-time" and that we must "write our own Ethernet protocol
stack" to get the performance we need. :-(

Obviously, I am looking for performance ammunition to avoid this
incredible folly. Does anyone have any performance info on
applications written using the PC-NFS Programmer's Toolkit?

Or, failing that, has anyone used any other application-callable
library for MS-DOS that will let me use UDP at this data rate?

HELP!

Tom Perrine (tep)                       |Internet: tep@tots.Logicon.COM
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