On Thu, May 30, 2019 at 5:01 PM Daniel Mach <dm...@redhat.com> wrote:
> Dne 30. 05. 19 v 8:39 Igor Gnatenko napsal(a): > > Last time I was about to propose this in F29, I did mass-rebuild myself > > and while decompressing was faster in most of the cases, the size was > > definitely worse. So definitely "Lower bandwidth on mirrors if we choose > > the highest compression level" is under the question. > My current observation is that compression ratio differs per package, > sometimes xz.2 wins, sometimes it's zstd.19. > The data I initially picked compresses better with zstd, while > recompiled RPMs that are installed in fedora:30 docker image have almost > equal size. > > BTW, which compression level did you use? > >From what I remember, I've tried at least 4-5 different ones. > Could you share some of your observations and stats if you still have them? > No, they were all on my RH laptop. But in short, quite some packages were actually bigger and building time was much slower in many cases. I think you'd want to check on 0ad-data package for something big. I never tested unpacking time because package size was bigger overall so I decided not to spend much time on it. > > > > I think before approving such changes, owners need to do mass rebuilds > > on their own and provide a graph of changes in size between original > > compression format and new one(s). > Doing that equals to the mass rebuild. > I'd rather do an analysis and if the numbers look sane, I'd prefer doing > a mass rebuild in a side tag so we can use the builds if the results are > sane. Hammering koji with so many scratch builds doesn't sound right to me. > Just use resources you have inside company :) If you don't have, I can donate some. > > > Just saying it works better on Firefox doesn't sound to me like the way > > to go. > Firefox was an example. > The other table shows real-life data based on RPMs available on Fedora > LiveCD. > _______________________________________________ > devel mailing list -- devel@lists.fedoraproject.org > To unsubscribe send an email to devel-le...@lists.fedoraproject.org > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org >
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