On Mon, Jan 6, 2020 at 7:56 PM Dusty Mabe <du...@dustymabe.com> wrote: > > For cloud at least it's very common to not have swap. I'd argue for servers > you don't want them swapping either but resources aren't quite as elastic as > in the cloud so you might not be able to burst resources like you can in the > cloud.
There's also discussion about making oomd a universal solution for this; but I came across this issue asserting PSI (kernel pressure stall information) does not work well without swap. https://github.com/facebookincubator/oomd/issues/80 Ignoring whether+what+when a workaround may be found for that, what do you think about always having swap-on-ZRAM enabled in these same environments? The idea there is a configurable size /dev/zram block device (basically a compressible RAM disk) on which swap is created. Based on discussions with anaconda, IoT, Workstation, and systemd folks - I think there's a potential to converge on systemd-zram generator (rust) to do this. https://github.com/systemd/zram-generator Workstation wg is mulling over the idea of dropping separate swap partitions entirely, and using a swap-on-ZRAM device instead; possibly with a dynamically created swapfile for certain use cases like hibernation. So I'm curious if this might have broader appeal, and get systemd-zram generator production ready. -- Chris Murphy _______________________________________________ cloud mailing list -- cloud@lists.fedoraproject.org To unsubscribe send an email to cloud-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/cloud@lists.fedoraproject.org
