[Bug 257616] WITH_META_MODE=yes, toolchain is rebuilt each make buildworld

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 05 Aug 2021 08:14:18 UTC

--- Comment #7 from Oleh Vinichenko <moonlapse81@gmail.com> ---
ok, so correct report from me had to be, that toolchain is rebuilt completely
after installworld, while i understand why it could be the case, it seems
excessive, when no changes in /usr/src happened (i.e, no git pull, etc ...). If
such behavior is by design, then this report can be closed as expected, no
problems with that.

with building world from scratch:
>>> World built in 5134 seconds, ncpu: 8, make -j8

with building world, just right after first one finished:
>>> World built in 64 seconds, ncpu: 8, make -j8 # good :)

after installing world (notice, that nothing done in /usr/src at all):
>>> World built in 3238 seconds, ncpu: 8, make -j8
most of time is llvm rebuild

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