On Mo, 08.02.21 10:09, Phillip Susi (ph...@thesusis.net) wrote: > That's a fair point: if btrfs isn't any worse than other filessytems, > then why is it the only one that gets a defrag?
As answered elsewhere: 1. only btrfs has a cow mode, where fragmentation is through the roof for randomly written files 2. only btrfs as a somewhat nice API for this (i.e. a single best effort ioctl with no params). (ext4 has a defrag API, but it's weird, and xfs I never checked, I never used it) 3. noone was annoyed by journal performance on non-btrfs enough to determine if this is worth it. -- Lennart Poettering, Berlin _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
