You are right. There IS a point where too much memory hinders performance.
In my experience (and I get to run GLANCE on a lot of boxes) starvation is
the general rule rather than having your cup runneth over, again YMMY.)

Paul Courry



>I would add one caution with the statement about adding memory.  As a
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>general rule I agree that adding memory is a good thing, but the old
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>addage of "too much of a good thing is bad" is true here as well.  Based
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>on how your system is used there is a point that adding memory will slow
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>interactive user performance.  We found this when doing performance
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>testing at HP's Capacity Planning Center.  It seems the more memory that
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>batch processing has to place with the more it dominates the system and
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>the priority of the user's versus batch has very little to do with who
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>gets cpu time.  It become a matter of who has resource locked (in use)
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>when a user needs that resource.
>
>
>
>I can not give you any idea how much memory is too much.  It all depends
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>on your system utilization.  But when you hit that magic spot you will
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>know what it is.
>
>