On Sat, Aug 22, 2020 at 12:53:24PM +0200, Germano Massullo wrote: > I think soon we will have a big boost in Koji performances thanks to > Giuliano Belinassi and his work on addressing GCC parallelization > bottlenecks. According to Phoronix, compiling individual files in > parallel may have up to ~1.9x speedup: > https://www.phoronix.com/scan.php?page=news_item&px=GCC-fparallel-jobs-Patches
AFAICT, that is referring to parallelizing single file compilation to make use of multiple cores. That's only useful if the other cores on your host are otherwise idle. In koji we use parallel make (or equivalent) so that multiple files are compiled in parallel. Thus most of the time all cores will be fully utilized. IOW, don't get too excited by the x1.9 speedup claim. I doubt we'll see that in kojki except in niche scenarios where a project's build is bottlenecked by a serialization point on compiling one file. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org 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@lists.fedoraproject.org
