Most of the CPU being consumed is in strcmp()
- 99.39% 0.00% zfs [kernel.kallsyms] [k] zfsdev_ioctl
▒
- 99.39% zfsdev_ioctl
- 99.34% zfs_ioc_objset_stats
- 99.22% zfs_ioc_objset_stats_impl.part.20
- 99.01% dmu_objset_stats
- 99.00% dsl_dataset_stats
- 98.98% get_clones_stat
- 62.55% fnvlist_add_nvlist
nvlist_add_nvlist
nvlist_add_common.part.51
nvlist_copy_embedded.isra.54
- nvlist_copy_pairs.isra.52
- 62.52% nvlist_add_common.part.51
- 31.25% nvlist_copy_embedded.isra.54
- nvlist_copy_pairs.isra.52
- 31.23% nvlist_add_common.part.51
- 30.78% nvlist_remove_all.part.49
strcmp
- 30.86% nvlist_remove_all.part.49
strcmp
- 31.73% fnvlist_add_boolean
- nvlist_add_boolean
- 31.72% nvlist_add_common.part.51
- 31.33% nvlist_remove_all.part.49
strcmp
+ 4.16% dsl_dataset_hold_obj-- 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" when under load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1567557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
