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37f03da8ba
Deleting a clone requires finding blocks are clone-only, not shared with the snapshot. This was done by traversing the entire block tree which results in a large performance penalty for sparsely written clones. This is new method keeps track of clone blocks when they are modified in a "Livelist" so that, when it’s time to delete, the clone-specific blocks are already at hand. We see performance improvements because now deletion work is proportional to the number of clone-modified blocks, not the size of the original dataset. Reviewed-by: Sean Eric Fagan <sef@ixsystems.com> Reviewed-by: Matt Ahrens <matt@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com> Signed-off-by: Sara Hartse <sara.hartse@delphix.com> Closes #8416 |
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| .. | ||
| arc_summary | ||
| arcstat | ||
| dbufstat | ||
| fsck_zfs | ||
| mount_zfs | ||
| raidz_test | ||
| vdev_id | ||
| zdb | ||
| zed | ||
| zfs | ||
| zgenhostid | ||
| zhack | ||
| zinject | ||
| zpool | ||
| zstreamdump | ||
| ztest | ||
| zvol_id | ||
| zvol_wait | ||
| Makefile.am | ||