On Fri, Jun 17, 2022 at 3:35 AM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > On Fri, Jun 17, 2022 at 12:53 AM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > > > On Thu, Jun 16, 2022 at 4:09 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > > > > > On Thu, Jun 16, 2022 at 12:45 PM Jiri Slaby <jslaby@xxxxxxx> wrote: > > > > > > > > Until the link-vmlinux.sh split (cf. the commit below), the linker was > > > > run with jobserver set in MAKEFLAGS. After the split, the command in > > > > Makefile.vmlinux_o is not prefixed by "+" anymore, so this information > > > > is lost. > > > > > > > > Restore it as linkers working in parallel (esp. the LTO ones) make a use > > > > of it. TBH, I agree with Masahiro. I didn't understand this comment "esp. the LTO ones." Jiri, can you clarify what you mean here? > [ CC Nathan and Sami ] > > I re-checked as my build-time takes approx. 15mins more than usual > with Linux v5.17. > > [ Perf - seconds time elapsed ] > v5.17: approx. 12500 > v5.19: approx. 13500 > > +1.000 secs = +16,67mins Does this patch make a difference? https://lore.kernel.org/linux-kbuild/20220616195759.3214538-1-samitolvanen@xxxxxxxxxx/ -- Thanks, ~Nick Desaulniers
