There are a few Core Parameters in switch.conf that I would like to know when they should be tweaked from their default configuration:

max-db-handles: Should there be one handle every N simultaneous calls? What is N?

initial-event-threads: Does it hurt or help to bump this up to 2 or 3 on an 8 core machine, even if the WARNING "Create additional event dispatch thread" hasn't come up?

db-handle-timeout: What symptoms would indicate that this needs tuning? Should it somwhow be scaled when max-db-handles is changed?

Thanks,

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Guillermo