Hi, Mattia Verga via devel <devel@xxxxxxxxxxxxxxxxxxxxxxx> writes: > Il 31/03/23 17:27, Florian Festi ha scritto: >> On 3/31/23 15:40, Stephen Gallagher wrote: >>> On Thu, Mar 30, 2023 at 3:42 PM Ben Cotton <bcotton@xxxxxxxxxx> wrote: >>>> https://fedoraproject.org/wiki/Changes/RPM-4.19 >>>> == Detailed Description == >>>> RPM 4.19 contains various improvements over previous versions. Many of >>>> them are internal in nature such as moving from automake to cmake, >>>> improvements to the test suite, stripping copies of system functions, >>>> splitting translations into a separate project and more. There are >>>> still several user facing changes: >>>> >>>> * New rpmsort(8) utility for sorting RPM versions >>> Handy! >>> >>>> * x86-64 architecture levels (v2-v4) as architectures >>> Could you explain more what this means, exactly? >> No! But here is the commit: >> >> https://github.com/rpm-software-management/rpm/commit/cd46c1704ccd8eeb9b600729a0a1c8738b66b847 >> >> It looks like it adds x86_64_v2, x86_64_v3 and x86_64_v4. Something >> about some x86_64 processors having additional capabilities. >> > Is there anyone who could provide some benchmarks to see if there are > significant performance improvements about using v2/v3/v3 versus plain > x86_64? If so, do you think we could drop building i686 by default (to > save some resources) and provide v2 (or v3, or v4) alongside x86_64? The only benchmark that *I* am aware of is this one done by Martin Jambor: https://jamborm.github.io/spec-2022-07-29-levels/ tl;dr; v2 does not really bring notable improvements, only v3 but also only in some selected synthetic benchmarks. openSUSE Tumbleweed went a different route and chose to utilize glibc-hwcaps instead: https://en.opensuse.org/openSUSE:X86-64-Architecture-Levels https://lists.opensuse.org/archives/list/factory@xxxxxxxxxxxxxxxxxx/thread/ZOHLT4CQ7TDOJJ2VV7HKMN5G2MR2CTMD/ Cheers, Dan _______________________________________________ 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
