Gregory P. Smith <g...@krypto.org> added the comment:

yeah I pulled a similar looking list of tests for the PROFILE_TASK to suggest 
to the Docker Python image maintainers - see 
https://github.com/docker-library/python/pull/404 and 
https://github.com/docker-library/python/issues/160.

I haven't run comparisons of that vs the default overly long profile task, but 
a comparison against a non PGO enabled cpython 3.7 build shows the types of 
speedups i'd expect from a decent PGO build.

doing proper comparisons against a full build would take a lot more time than I 
have right now.

It'd be reasonable to change the default task to something that is faster to 
build so long as we don't appear to be making major sacrifices in speed 
somewhere.

(your benchmark table's pickle result changes are inconsistent and odd, but 
that benchmark may not be very meaningful as written, i haven't looked at it)

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