Sara Hartse 37f03da8ba Fast Clone Deletion ... 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		2019-07-26 10:54:14 -07:00
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linux.run	Fast Clone Deletion	2019-07-26 10:54:14 -07:00
longevity.run	OpenZFS 9166 - zfs storage pool checkpoint	2018-06-26 10:07:42 -07:00
Makefile.am	Fix out-of-tree build failures	2019-06-24 09:32:47 -07:00
perf-regression.run	OpenZFS 9184 - Add ZFS performance test for fixed blocksize random read/write IO	2018-07-02 13:46:06 -07:00