On Wed, Mar 2, 2022 at 2:16 PM Jakub Jelinek <jakub@xxxxxxxxxx> wrote: > > On Wed, Mar 02, 2022 at 01:29:00PM -0500, Ben Beasley wrote: > > In RPM packaging, of course, everything is built from scratch, usually with > > LTO, and a package that takes a minute to link probably takes an hour to > > build. While any work that can be saved in an RPM build is helpful, I think > > the gains from a fast linker are likely to be much less dramatic here. > > > > [1] https://src.fedoraproject.org/rpms/mold/blob/rawhide/f/mold.spec#_24 > > Note, until a few days ago mold didn't support linker plugins, so was > incompatible with GCC LTO. There is some support in now but still a WIP. > > Linking speed is just one of the factors in choosing a linker, > reliability (e.g. known races in gold which is now effectively unmaintained > are a problem), or what features it supports. > mold doesn't support linker scripts so it is out of question for many use > cases, for other use cases it might matter more how large binaries and with > what security features in it it creates, etc. > I think for building Fedora packages in koji those other factors are much > more important than a few seconds saved during the package build. Some of the Ceph developers were investigating mold, since Ceph takes so long to build. Linking time is a problem for us with Ceph. But I don't know if those interested Ceph developers have done benchmarks yet. And the lack of s390x and ppc64le is problematic for us in Ceph too. But overall I'm amazed at how fast mold development is progressing. - Ken _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
