[DGD] Paranoid about MP

[Shentino]

I did some reading about how MP was going to be implemented and ran
across a concern.

Do I need to be worried about reordering of threads?

More to the point:

Barring speed differences, is it guaranteed that execution rounds in
MP will execute in the same order as in UP?  Or can threads commit in
a different order than they started in?

Examples:

callout 1 (0 second) is scheduled
callout 2 (0 second) is scheduled

but if callout 2 is faster, it might commit before callout 1.

Is this a concern or am I just being paranoid?

I'm doing some voodoo that depends on proper ordering.