Buildworld and buildkernel with very slow compilation, recently

[Michael Grimm]

Hi,

I am following FreeBSD 12.1-STABLE. 

Clang has been upgraded to version 10.0.0 on May, 1st, and ever since that time, I do observe a dramatic increase in compilation times of building world, kernel and ports. I didn't benchmark the exact times, but compilation times are at least increased by a factor of 1.5. Nothing has changed of the last month besides upgrading 12.1-Stable every other week.

Has anyone else been bitten by this?

Regards,
Michael