The Ubuntu kernel team recommends to have at least 4GB of free memory to
run ZFS on slow backing store devices for nominal performance. Since
there is OS overhead (kernel, userspace processes etc) a 4GB Raspberry
Pi will perform sub-optimally. Note that the document you referenced in
commet #1 states:
"Computers that have less than 2 GiB of memory run ZFS slowly. 4 GiB of
memory is recommended for normal performance in basic workloads. "
Once you start to add in ZFS options such as compression and/or run
scrubs on a slow device it is likely you may start to see high memory
pressure issues occurring. Hence we do not support ZFS unless you have
at least 4GB of memory free.
** Changed in: linux-raspi2 (Ubuntu)
Status: Confirmed => Won't Fix
** Changed in: linux-raspi2 (Ubuntu)
Importance: Undecided => Wishlist
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1852119
Title:
Please add zfs modules to linux-raspi2
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1852119/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
