> We're testing UDB and 
> the IBM people helping us with this project were very 
> insistent that we run the UDB/Linux guests at 2 gig. 

This is bad advice. 

> goes against everything we've been told on this list to do.  
> I originally started out with 512meg guests.  The increase to 
> 2 gig did improve response time but not to the point that it 
> was a speed demon.  Increasing to 2 gig helped but it was not 
> a silver bullet.

Increasing memory size will improve things...for a while. Once things
start competing for resources -- which, by doing this, they have moved
that time much closer than it needs to be -- things will get
dramatically worse very quickly. 

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