howmuch free memory

[Geetam]

You have convinced me that I do not have an ounce (how many bits in an ounce?) spare memory for another big process.

What started me off on the wrong foot was that we do not perceive any performance problems, so I was assuming that both database processes were fully in physical memory. And I was hoping there was some left...

Stefan
I am still not convinced that pseudo swap actually gets used, but that is a hypothetical issue: I will not push a system that hard! I think it is not actually going
to move pages from one place in memory to another, it will just lock those pages
and increment the pseudo swap value in swapinfo.

Tony
Thanks for rubbing my nose in 'vmstat', I will now give that more attention.

Full points for both of you, thank you for your persistance.