On Thu, Jan 3, 2019 at 1:47 PM Chris AtLee <cat...@mozilla.com> wrote:

> Thank you Joel for writing up this proposal!
>
> Are you also proposing that we stop the linux64-opt and win64-opt builds as
> well, except for leaving them as an available option on try? If we're not
> testing them on integration or release branches, there doesn't seem to be
> much purpose in doing the builds.
>

One reason we might not want to stop producing opt builds: we produce
artifact builds against opt (and debug, with --enable-debug in the local
mozconfig).  It'll be very odd to have --enable-artifact-build and
_require_ --enable-pgo or whatever it is in the local mozconfig.

I expect that these opt build platforms will be relatively inexpensive to
preserve, because step one (IIUC) of pgo is to build the same source files
as the opt builds.  So with luck we get sccache hits between the jobs.
Perhaps somebody with more knowledge of pgo and sccache can confirm or
refute that assertion?

Nick
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