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From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v2] Add /proc/pid_gen
Date: Wed, 21 Nov 2018 17:29:19 -0800
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To: Daniel Colascione <dancol@google.com>
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On Wed, 21 Nov 2018 17:08:08 -0800 Daniel Colascione <dancol@google.com> 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?