On Wed, 21 Nov 2018 17:08:08 -0800 Daniel Colascione [off-list ref] wrote:

Have you done much
retrospective long trace analysis?

No.  Have you?

Of course you have, which is why I and others are dependent upon you to
explain why this change is worth adding to Linux.  If this thing solves
a problem which we expect will not occur for anyone between now and the
heat death of the universe then this impacts our decisions.

The patch already describes the problem, the solution, and the way in
which this solution is provided. What more information do you want?

I want to know how useful the darn thing is!  Why is this so hard?

And my thus-far-unanswered question regarding testing the feature
is also relevant to that understanding.  What does a testcase look
like?  If we're not actually able to construct one then what does that
mean?