Does high availability with Oracle RAC have a negative effect on the expected performance? Does the scaling over several nodes dominate, or does the overhead, e.g. through cache fusion? With a suitable setup, HA expert Axel vom Stein, in collaboration with Martin Klier, got to the bottom of these questions using common performance tools and provides appropriate answers.

This presentation is not so much about the results, but about the way we achieved them. An introduction to Swingbench & ORION as well as preliminary considerations including the necessary evil of using a well-known spreadsheet tool will be part of the presentation. Of course, everything is true to the slogan: "Don't trust any statistics you haven't faked yourself!"

This is the "Making of" of Martin Klier's presentation "The price we pay - Performance and HA with Oracle RAC" about necessary compromises
between availability and system performance in the database environment.