https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84402
--- Comment #50 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Martin Liška from comment #48) > Created attachment 53989 [details] > CPU utilization of make all-host on recent AMD server > > The situation with a recent AMD server is really bad! Having 192 cores, the > average CPU utilization of `make all-host` is 6% ! Just do more builds in parallel! There's just 903 .o files in gcc/ and libbackend.a just has 490 of them. It's not surprising the few larger files stretch out the compile-time here. Try LTOing libbackend.a?
