V Tue, May 09, 2023 at 12:31:54PM +0800, Jens-Ulrik Petersen napsal(a): > I have been thinking about proposing a Change to Fedora 39, > which would disable yum modular repos by default in installs. > I thought I would float the idea here first. > > I suspect the vast majority of Fedora users don't use > the modular repos Probably. But I don't know. We will know from countme statistics after we disable them. >, so I don't see the point of enabling > them by default anymore. Does this make sense? > That makes sense. > I know dnf5 is coming with performance improvements > but I still think turning off the modular repos would speed up dnf > and save users a lot of time. > How much is a lot of time? I measured cached "dnf upgrade" (i.e. DNF4) on rawhide without and with the modular repository 5 times and the times are 1.022 vs. 1.090 seconds. I.e. 6.2% speedup. Then I removed caches and looked at download times. I again did 5 tries, but the variance in dowload times reported by DNF was significantly useless. So I can only say that a size of the transmitted data is 71.0 MB for nonmodular repository and 1.6 MB modular repository. However, even this comparison is not fair as a different compression algorithm is used. -- Petr
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