[Bug 1840510] Re: Please enable PGO and LTO for arm64

[Dan Streetman]

I've been told that this is planned for the 3.7.5 release of python3.7 in 18.04.  The release schedule for that is here:
https://www.python.org/dev/peps/pep-0537/#id4

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Title:
  Please enable PGO and LTO for arm64

Status in python3-defaults package in Ubuntu:
  New

Bug description:
  The rules file conditionally enables PGO and LTO in the python3 build
  and while it's enabled for many platforms it's not enabled for arm64.
  This is worth about 30% performance. Please enable it.

  A patch is available here with the original debian bug report:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934812

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