RE:DECServer Load Balancing Formula

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1 total messages Started by nagy%43198.hepnet Fri, 10 Apr 1987 21:13

#4173

Author: nagy%43198.hepnet
Date: Fri, 10 Apr 1987 21:13

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Well, I don't know what the formula is, but it works pretty well.  The
one exception seems to be with systems that are 100% busy because
batch jobs are ALWAYS running in the background and eating up that
idle time.  

We have a 2 node LAVC (both MicroVAXes) and get the users fairly
well split between the two systems.

One point to beware of when you try it: if your systems are lightly
loaded AND you a trying "load balancing" by logging in another
session from your terminal, you will find that the DECServer's
bias to add a new terminal to an existing virtual circuit will
cause your 2nd session to go to the same VAXCluster node (this is
done to more efficiently use the communications channel - the
controller and CPU on the host - by doubling up characters for
two terminals in the same Enet packets).

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