On Sun, Jan 12, 2025 at 12:08:20PM +0100, drago01 wrote: > On Sunday, January 12, 2025, Vitaly Zaitsev via devel < > devel@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > > > On 10/01/2025 20:28, Aoife Moloney via devel-announce wrote: > > > >> Individual packages can provide already optimized libraries via the > >> glibc-hwcaps mechanism. This approach will be extended to executables. > >> The package provides an optimized variant of a binary in a different > >> directory. > >> > > > > So all Fedora packages will take 2x (x86_64-v1, x86_64-v2) disk space? Am > > I right? > > > > > No, the proposal is not to do that for all packages, it's opt in for the > ones that benefit. > > > > A symlink to small program which replaces the binary in > >> `/usr/bin`. > >> > > > > What will happen if the system was installed on x86_64-v2 and then > > copy-pasted to another machine with x86_64-v1? The symbolic link will point > > to x86_64-v2 binary, which will cause a segmentation fault, resulting in > > the system not being able to boot. > > > How realistic is that case? If anything it goes in the other direction i.e > people upgrade their hardware. In virtual machines with some configs your CPU can be different every time you boot it depending on what host you run it on. So this scenario could easily exist, especially with public cloud, in either direction. With 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@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, report it: https://pagure.io/fedora-infrastructure/new_issue
