ken@uctcs.uucp (Ken McGregor) (03/23/91)
I have looked at the computer system of a company running an NCR 850.
This is a large system with 4AP's, 3FP's, 3CC's and 2-3Ep's. They recently
moved the users from the CC's to terminal servers connected to Ethernet.
They are using WIN/TCP on the 850.
Since then the performance has significantly degraded. When running sar
the sys time has gone up by about 20-25% and the user time dropped from
40% to 15% with obvious decrease in response.
I have the following questions
1. Is this normal and can it be tuned?
2. What is TCP/IP doing in the AP as the EP's are meant to be intelligent
so surely the packetizing/depacketizing is done there? If not what is the
intelligent EP with its own downloaded kernel doing?
They are thinking of buying a number of 3000's but are concerned that the same
thing will happen again and are not too happy with WIN/TCP. Is there an
alternative to WIN e.g. Lachman?
Can anyone please help me with this?
Ken MacGregor ken@cs.uct.ac.za
Computer Science ken%uctcs%quagga@uunet.uu.net
University of Cape Town ...uunet!{m2xenix!quagga,ddsw1!olsa99}!uctcs!ken