Hi Jonathan, On Tue, May 28, 2019 at 8:50 PM Jonathan Carter <j...@debian.org> wrote: > On 2019/05/28 18:43, Dan wrote: > > ZFS 0.8 has been released with lots of improvements, notably encryption. > > Yep, it's an exciting feature. > > > Sadly the Linux Kernel has introduced a commit in kernel 4.19 and 5.0 > > that prevents ZFS from using SIMD. The result is that ZFS won't be > > usable in Buster. See the following issue > > https://github.com/zfsonlinux/zfs/issues/8793 > > Buster ships zfs-dkms version 0.7.12-2 though, which works just fine on > buster.
My message was not accurate. I think that the commit has been introduced in in 4.19.38 (released 2019-05-02). I think that Debian Buster uses 4.19.37 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.38 The commit also affects ZFS 0.7 because SIMD is used for checksum operations. There might be a performance penalty in ZFS only if Debian Buster upgrades to 4.19.38. Best, Daniel
