On 06/29/2014 02:06 PM, Tom Lane wrote: > Well, the issue from our point of view is that a lot of what we care about > testing is extremely low-level hardware behavior, like whether spinlocks > work as expected across processors. It's not clear that a simulator would > provide a sufficiently accurate emulation.
Oh ok, I understand. Thank you for the clarification. > OTOH, the really nasty issues like cache coherency rules don't arise in > single-processor systems. So unless you have a multiprocessor VAX > available to spin up, a simulator may tell us as much as we'd learn > anyway. > > (If you have got one, maybe some cash could be found --- we do have > project funds available, and I think they'd be well spent on testing > purposes. I don't make those decisions though.) I have several multiprocessor VAXen, but only one of them is capable of running NetBSD, and I only (currently) have a single processor in that machine. I can (and want to) fix that, but not right away. -Dave -- Dave McGuire, AK4HZ/3 New Kensington, PA -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers