On Mon, 2020-01-06 at 16:35 -0800, Brian C. Lane wrote: > On Sun, Jan 05, 2020 at 10:08:07AM -0700, Chris Murphy wrote: > > I've pretty much concluded Fedora is best off dropping the nested ext4 > > in favor of plain squashfs, and using zstd. It's not required to do > > both, but the benefit is additive and significant. The work in dracut > > and lorax to support plain squashfs, assembling it using overlayfs > > instead of device-mapper is already done, and tested. > > I agree with Chris here, I think we should make the switch to plain > squashfs unless someone can come up something dramatic that it will > break :) Tweaking the current settings would be fine if we didn't have a > better, simpler, solution. > > A side note about the xz bcj compression -- in some experiments I > noticed that enabling x86 and armthumb resulted in further reduction > (about 400k with the default block size). My guess was due to use of ARM > instructions in the firmware blobs. Also does squashfs support zstd compression ? IIRC the speedups in compression and decompression speed we got for RPMs[0] with zstd were pretty nice, so having the same for the media would be nice as well. :) [0] https://fedoraproject.org/wiki/Changes/Switch_RPMs_to_zstd_compression > > -- > Brian C. Lane (PST8PDT) - weldr.io - lorax - parted - pykickstart > _______________________________________________ > 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 _______________________________________________ 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
