Performance question

[Alan Fiebig]

What effect do:
  Max Unscanned Messages Per Scan
  Max Unsafe Messages Per Scan

have on CPU, RAM, and IO usage?

Is it better to have a smaller batch that runs more often,
or a big batch that takes longer?

If the in queue has 1,000 messages waiting to be processed,
I've never understood the difference between:

  5 children performing a total of 10 batches of 100 messages each
vs.
  5 children performing a total of 100 batches of 10 messages each

-Alan