On Fri, Jun 17, 2022 at 07:10:01PM -0000, Daan De Meyer via devel wrote: > > Regressions of such magnitude can veto such changes, especially when > > they hit everyone, not just those who are highly dependent on the > > profiling tools the proposal is concerned about. > > The kernel benchmarks were added as an example of openly available data we could find on the potential impact of frame pointers. Note that the email from Mel Gorman is all we have to go on. Unfortunately the original data from the benchmarks is gone so I can't try to reproduce them. I've emailed Mel to see if he still has the benchmarks stored somewhere so we can perhaps try to reproduce the results. > > I've added a clarification to the change proposal that we don't intend to actually compile the kernel with frame pointers OK, so the (old!) kernel benchmarks are not of little relevance. I think that this really needs to be benchmarked. Without that the discussion will just go on in circles. There are two nice options for this: either copr, where you first build the redhat-rpm-config with the adjusted options and then rebuild some subset of rawhide to be able to do benchmarks, or just the same thing locally on a server with a bunch of CPUs. One architecture should be enough. Mini-rebuilds like that take a few days, so it's entirely possible to do. Zbyszek _______________________________________________ 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
