On Wed, Jun 17, 2020 at 12:05 PM Richard Shaw <hobbes1069@xxxxxxxxx> wrote: > > I didn't get any response from the EPEL list so forwarding here since the change was discussed here anyway... > --- > > So with the discussion about moving to zram for swap on Fedora I wondered if it was worth taking a look at for my CentOS 8 machine. > > I noticed that there was a build in Koji but it was deleted. Figuring there was a reason but as yet undeterred I checked out master and built an el8 rpm. > > Installed on my CentOS 8 machine and tried to start it up... Definitely broken somehow. > > Figured out that it didn't like the command that created the zram (zramctl). Turns out that (and this is a guess), that the kernel in CentOS doesn't support lz4 compression. In fact none of the compression options worked except "deflate". Not sure what the compression ratio is for it but I now have zram using it. zramctl and lz4 are used by the 'zram' package in Fedora - but are not used by the 'rust-zram-generator' package, which is the meta package to search for in koji, that's part of the swap-on-zram feature proposal. So it might be possible you have the wrong package? The zram-generator currently uses lzo-rle. > Second problem is that the configuration options in /etc/zram.conf seemed to be ignored. Yep again this is for the 'zram' package, which the plan is to obsolete in favor of zram-generator. Also, there are some changes coming to make zram-generator configuration more like what folks expect from systemd configurations generally - i.e. that the default configuration will be in /usr and user override will be in /etc. The feature proposal will be updated to reflect these changes. Sorry for the confusion, but working through and reducing confusion, are a fair part of the tasks for this feature. I am aware of the irony: So this guy is proposing a feature that introduces yet another way of enabling swap on zram, while saying there are too many swap on zram implementations! Who is this comedian?! Cuz he's not very funny! -- 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
