On Mon, Apr 6, 2020 at 8:08 PM Adam Williamson <adamw...@fedoraproject.org> wrote: > > On Mon, 2020-04-06 at 23:56 +0000, Tom Seewald wrote: > > Yep, I just ran "dnf info kernel" and then right after that "dnf > > changelog kernel", in both cases dnf spent over 20 seconds syncing. > > I haven't seen other package managers require this much network > > traffic, and I wonder if a lot of it could be avoided. > > If you only want to query *locally installed* packages, you can just > use rpm: > > rpm -qi kernel > rpm -q --changelog kernel > > if you use DNF, it will get the info for packages that are in the > repositories but not locally installed, as well. changelogs are kept > and retrieved separately, I believe, as they aren't needed for any > other operations, so that's why you see remote trips on both commands, > I think.
With the exception of changelogs (which requires downloading other.xml metadata), all query actions should be possible to perform with DNF with --cacheonly flag, which will use the system cache or local user cache if it hasn't expired yet. I have heard from people that the cache is expiring prematurely in some cases (thus forcing more metadata downloads), but I haven't been able to reproduce it myself. -- 真実はいつも一つ！/ Always, there's only one truth! _______________________________________________ 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
