From: NotariE@usa.redcross.org
Date: Fri Oct 10 2003 - 11:29:44 EDT
Hello All,
Problem in a nutshell;
We are seeing performance issues as we are trying to implement SSH2 and
X11 forwarding (tunneling) for X-Apps to the desktop. Specifically,
"jerky" performance in NEDIT and some lag times in other x-apps.
The specs; _SERVER_
ES40 2x667MHz, 1GB RAM, Tru64 v5.1A, fully patched, latest Tru64 SSH2,
100Mb full to switch, VLAN2.
_DESKTOP_
Intelium 2.4GHz, 1GB RAM, W2KPro, PuTTY, ReflectionX, 10Mb full to
switch, VLAN2.
The SSH2 configuration is mostly default.
Is this type of performance lag normal?
It certainly hasn't happened when running ReflectionX via telnet.
It doesn't seem to be caused be unusual packet sizes traversing blades
in the switch. I connected directly to a secondary ethernet connection
on the ES40 using a PC164LX Alpha system (same OS) and saw similar
performance issues from alpha to alpha.
Is there a way to test for or mitigate this problem?
If any more info is needed please advise and I will provide it.
Thanks,
Ed Notari
Senior Research Associate
Transmissible Diseases Department
Jerome H. Holland Laboratory
American Red Cross
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