Stewart Smith <stewart@stripped> writes:
> Really simple patch to get the CPU count out of an OSX box for automatic
> --parallel setting for mtr2.
Actually, in my experience, --parallel gives huge speedups even on a
single-processor machines. Most of the time seems to be spent in sleep(), not
in burning CPU :-(.
So I would think it makes more sense to set parallelism on available memory?
(Assuming running in ram disk, if not disk trashing becomes the limit under
higher --parallel values).
But maybe this is different in Drizzle, haven't run Drizzle tests in a while.
- Kristian.
