[Oracle-l] How to use rPerf to estimate a partitioned server capabilities

Hi.

I'm trying to see whether a logical partition of a IBM
server will have enough resources to support our
databse based on the size of the DB. In the past the
way I did it was to take an rperf, multipy by 100-125M
and see whether it will exceed my estimate for a DB
size (as suggested in IBM REd book). This time around
we are going to get a logical partition of a p690
server. The question that I face now is how do I get
the value of an rperf. For example, the rperf for
8CPUs is 12.72. If we get 4CPU, do I use 6.36 for the
rperf (that is half of 12.72)? Or should I use some
other number? Has anyone been through this process
before and has any insight?

thanks

Gene

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