On Fri, Nov 2, 2012 at 2:19 PM, Dave Mandelin <dmande...@gmail.com> wrote:

>  (b) Failing that, how about not fixing PGO bugs unless they are
> reproducible, on a trial basis? If my lifecycle theory is correct, then the
> total crash rate would stay roughly constant. And I assume that if the
> crash rate doesn't actually go up, that's OK. If it does, and especially if
> that can be shown to be due to an increasing number due to outstanding PGO
> bugs, that would show that we do benefit from fixing them.
>

Seems to me a good start would be to make a number of builds from regularly
spaced points in the past, backing out all PGO fixes in all those builds,
and examining the code to see if each PGO bug was present. Perhaps you
could improve the results by weighting each bug according to its measured
topcrash rate while it was present.

Rob
-- 
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Gentiles lord it over them, and their high officials exercise authority
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