Hello Magnus and Aleksei, thanks for the input . The times you provided really look like they make a big difference at least for people often building minimal-vm . Guess I have to measure myself a bit (maybe the difference is not that big on our linux s390x / ppc64(le) ) .
> > If the change to enable lto by default is proposed, what would be the > recommended strategy for development? > Probably we should a) do not enable it by default but just make sure it can be enabled easily and works for the minimal-vm or b) take it easy to disable it for local development. Best regards, Matthias > > Magnus, Matthias, > > for me, lto is a little heavyweight for development. x86_64 build time > with gcc 7: > > Server 1m32.484s > Server+Minimal 1m42.166s > Server+Minimal (--with-jvm-features="link-time-opt") 5m29.422s > > If the change to enable lto by default is proposed, what would be the > recommended strategy for development? > > For ARM32 Minimal, please keep in mind that it's not uncommon to disable > LTO plugin in commodity ARM32 gcc compiler distributions, so for some it > does not matter what settings we have in OpenJDK. I believe there could > be other reasons for that on top of build time (bugs?). >
