[Bug bootstrap/84402] [meta] GCC build system: parallelism bottleneck

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84402

--- Comment #15 from Segher Boessenkool <segher at gcc dot gnu.org> ---
This is a -O0 build?  That's what that time report shows afaics.