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3 months agoJust adjust it if you actually need the RAM and it isn’t relinquishing quickly enough.
options zfs zfs_arc_max=17179869184
in /etc/modprobe.d/zfs.conf, update-initramfs -u
, reboot - this will limit ZFS ARC to 16GiB.
arc_summary
to see what it’s using now.
As for using a simple fs on LVM, do you not care about data integrity?
Vodka is unlikely to hurt your keyboard.