I've bumped up the zcmd size to reduce the double ioctl() calls and we're seeing 25-40% improvement clones > 1000. This is an interim fix until we get a better fix from upstream. I'm going to SRU this once we're OK with it in Arful. Attached are the new benchmarks.
** Attachment added: "Updated benchmarks comparing old and new performance stats for large numbers of clones" https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1567557/+attachment/4928925/+files/zfs-clone-performance.ods -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1567557 Title: Performance degradation of "zfs clone" To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/1567557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
