On Sun, Jun 7, 2020 at 11:18 PM John M. Harris Jr <johnmh@xxxxxxxxxxxxx> wrote: > > On Sunday, June 7, 2020 11:51:38 AM MST Konstantin Kharlamov wrote: > > The third question touches the paragraph "Why not zswap?". The only > > point it mentions is that swap-device is not encrypted. Fair enough, > > although I wonder why this never has been regarded as a problem before. > > An important consideration is that zram is *also* not encrypted. If that's > enough to rule out zswap, it should be enough to rule out zram too. /dev/zram0 isn't persistent. > > Let me emphasize that: 3GB of compressed RAM (ZSWAP + SWAP) is not > > enough! The moral of this story is that you can't get away with only > > ZRAM without any disk SWAP. You need disk SWAP. And if you have disk > > SWAP, ZSWAP fits more nicely there as a compressing buffer before the > > data finally spills over to disk. > > > > 1: https://fedoraproject.org/wiki/Changes/SwapOnZRAM#Why_not_zswap.3F > > 2: > > https://github.com/Hi-Angel/scripts/blob/master/warn-on-low-memory.pl > > Zswap sounds like an excellent idea to look into instead of zram. Not only > that, but it'd allow traditional entry in fstab to configure it, instead of > some systemd magic that nobody knows about. zswap is configured by sysfs, same as zram. It's a consideration, but I'm uncertain if it can happen for F33. -- 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
