On Sat, Jun 20, 2020 at 11:50 PM Ulli Horlacher <framstag@xxxxxxxxxxxxxxxxxxxx> wrote: > > On SLES a weekly fstrim is done via a btrfsmaintenance script, which is > missing on Ubuntu. > > For ext4 filesystem an explicite fstrim call is no longer neccessary, what > about btrfs? > Shall I call fstrim via /etc/cron.weekly ? util-linux provides fstrim.service and fstrim.timer for a while now. fstrim.timer runs on Monday at 00:00 local time. The upstream default is disabled, some distributions enable it by default. You can use this until your kernel supports discard=async mount option for btrfs. -- Chris Murphy
