Zbyszek, Do you have any advice on how to assess 'swap on ZRAM' versus 'zswap' by default for Fedora Workstation? They're really too similar from a user point of view, I think it really comes down to the technical arguments. 1a. 'swap on ZRAM' compresses only that which goes to the ZRAM device 1b. zswap compresses everything whether it goes to the memory pool or swap on disk. 2a. 'swap on ZRAM' must be configured to give priority to the ZRAM device; once full, disk swap (if present) is used 2b. zswap anticipates the future usage of data, favoring the memory or disk swap locations accordingly They both appear equally easy to enable by default for clean installs and upgrades. I'd say 'swap on ZRAM' is well suited for the cases where there's no existing swap partition, and low memory devices. Whereas zswap is better suited for average to higher end systems, where the main goal is swap avoidance, but where zswap can help moderate the worst performance effects of the transition to disk based swap. It seems premature to drop the creation of a swap partition at installation time. I think that'd be unexpected by most users. And might have some consequences other than (unsupported) hibernation use case. So my assessment, at this point, would be to recommend zswap for Fedora Workstation. Likely using zbud/lz4. Maybe by Fedora 33 there will be more confidence and testing done on z3fold. -- Chris Murphy _______________________________________________ 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
