On Thu, Jun 20, 2024 at 10:51:56AM -0400, Stephen Gallagher wrote: > On Thu, Jun 20, 2024 at 10:49 AM Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote: > > > > On Thu, Jun 20, 2024 at 03:24:18PM +0100, Tom Hughes via devel wrote: > > > On 20/06/2024 15:03, Stephen Gallagher wrote: > > > > > > > Honestly, I'd like to pitch that we retarget Fedora at x86_64-v3 (yes, > > > > three) and recommend creation of a Fedora "Hardware Life Extension" > > > > Remix that can provide rebuilds of (a subset of) Fedora that they want > > > > to run on ancient hardware. It could be something similar to Fedora > > > > ELN, where a subset of the main repo that might be useful on old > > > > hardware can be rebuilt (though unlike ELN, I suggest that this should > > > > be an entirely separate infrastructure not maintained by the Fedora > > > > Project). Such a project could then live or die based on willingness > > > > to maintain it and stop holding back Fedora as a whole. > > > > > > I definitely think going to v2 would be reasonable bit I tink > > > forcing v3 might be a step too far. > > > > If going to v3, compared v2.... > > > > For AMD, we would loose Opteron Gen4 and Opteron Gen5 models, but > > keep EPYC/Ryzen all generations. > > > > For Intel, we would loose Denverton, IvyBridge, Nehalem, > > SandyBridge, Snowridge, Westmere, but keep Skylake, > > SapphireRapids, Icelake, Haswell, GraniteRapids, Cooperlake, > > Cascadelake, Broadwell. > > > > > > Personally I'd say v2 is the better first step, as plenty of > > those generations we'd loose are still pretty relevant, even > > if not the state of the art shipping today. > > > > > OK, I think I got my baselines mixed up. Sorry about that. I could > have sworn what you were describing above was the effect of moving to > -v4. This table is specifically referring to named QEMU CPU models, but the names & impls match vendor generations closely enough that this is a decent crib-sheet to get an overview of the compatibility matrix: https://www.qemu.org/docs/master/system/i386/cpu.html#abi-compatibility-levels-for-cpu-models 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
