On Thu, Aug 01, 2019 at 11:28:30AM -0700, Suren Baghdasaryan wrote:

quoted

By marking it FIFO-99 you're in effect saying that your stupid
statistics gathering is more important than your life. It will preempt
the task that's in control of the band-saw emergency break, it will
preempt the task that's adjusting the electromagnetic field containing
this plasma flow.

That's insane.

IMHO an opt-in feature stops being "stupid" as soon as the user opted
in to use it, therefore explicitly indicating interest in it. However
I assume you are using "stupid" here to indicate that it's "less
important" rather than it's "useless".

Quite; PSI does have its uses. RT just isn't one of them.