I can confirm it. At the moment the kernel module is not patched and you need to install the package zfs-dkms.
without patch: WRITE SPEED 25,3 MB/s READ SPEED 52,6 MB/s with patch (apt install zfs-dkms && reboot): WRITE SPEED 173 MB/s READ SPEED 230 MB/s Ubuntu 20.04 LTS linux-image-5.4.0-40-generic (5.4.0-40.44) amd64 zfs-dkms (0.8.3-1ubuntu12.1) all CPU: AMD Opteron(tm) X3216 APU zfs encryption: aes-256-gcm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881107 Title: zfs: backport AES-GCM performance accelleration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1881107/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
