On Mon, Dec 21, 2020, 8:19 PM Davide Cavalca via devel < devel@lists.fedoraproject.org> wrote:
> On Mon, 2020-12-21 at 12:54 -0400, Robert Marcano via devel wrote: > > On 12/21/20 12:28 PM, Ben Cotton wrote: > > > ... > > > > > > === New process === > > > > > > # Resolve packaging request into a list of packages and operations > > > # Download and '''decompress''' packages into a '''locally > > > optimized''' rpm file > > > # Install and/or upgrade packages sequentially using RPM files, > > > using > > > '''reference linking''' (reflinking) to reuse data already on disk. > > > > This sound great because free space requirements can be reduced, > > specially when installing new packages. > > > > I have experimented building very small appliances using btrfs > > compression on things like /usr/share. So I think this could disrupt > > this because if I am correct the extends will be first downloaded to > > a > > temporary directory without compression enabled. > > For CoW to be beneficial, the package cache should be on the same > filesystem used for the bulk of the system. In this scenario, > compression should work just fine, as long as it's enabled on the > appropriate subvolumes. > On btrfs there is a compression file flag so you can set compression on a directory without having compression on the DNF cache directory on the same volume > > > I am happy with an option to disable this behavior. > > To be clear, for this Change we do not plan to enable CoW by default. > If would be a user opt-in via the dnf-plugin-cow package. > Good, thanks > Cheers > Davide > _______________________________________________ > 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 > lol >
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