On 24 Jul 2019, at 17:12, mike tancsa <m...@sentex.net> wrote: > > On 7/24/2019 9:45 AM, Dimitry Andric wrote: >> On 24 Jul 2019, at 14:47, mike tancsa <m...@sentex.net> wrote: >>> On 7/23/2019 2:40 PM, Dimitry Andric wrote: >>>> Author: dim >>>> Date: Tue Jul 23 18:40:32 2019 >>>> New Revision: 350256 >>>> URL: https://svnweb.freebsd.org/changeset/base/350256 >>>> >>> Hi, >>> >>> Not sure if this is just a difference in the versions or more things >>> are being compiled, but I noticed a buildworld on my Ryzen went from ~ >>> 31min to just over 40min. Is this expected ? >> Most likely this is because it will now build a bootstrap compiler, >> whereas previously your system may have skipped this step. Can you >> compare the results when setting MK_SYSTEM_COMPILER=no and >> MK_SYSTEM_LINKER=no ? > > Adding those two to src.conf and make.conf still shows 40min > > time make -j14 buildworld > /var/log/build.out ; time make -j14 > buildkernel > /var/log/build.out. > [Creating objdir /usr/obj/usr/src/amd64.amd64...] > 25312.621u 1237.984s 40:09.72 1101.8% 45579+3473k 656666+3288880io > 214633pf+0w > 1675.467u 173.497s 2:37.90 1170.9% 37728+3167k 207118+3329460io > 61829pf+0w > > Should I be setting these vars somewhere else ?
Ah, setting them in src.conf, make.conf or the environment will be overridden from Makefile.inc1, unfortunately. It will then show something like: make[1]: "/home/dim/src/stable-12/Makefile.inc1" line 343: SYSTEM_COMPILER: libclang will be built for bootstrapping a cross-compiler. make[1]: "/home/dim/src/stable-12/Makefile.inc1" line 348: SYSTEM_LINKER: libclang will be built for bootstrapping a cross-linker. E.g, it detects that your system compiler is of a lower version than the compiler in the source tree, and will thus bootstrap the latter. Can you compare the timings when setting MK_SYSTEM_COMPILER=yes and MK_SYSTEM_LINKER=yes? In that case, both before and after r350256, the results should be fairly similar, I expect. -Dimitry
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