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ba0e1749ec
Restricting the `zfs list` command to depth 1 saves a lot of time for pools with many datasets/zvols. In my case, before: ``` $ time zfs list -s name -o name,guid,available -H -p >/dev/null real 0m3.853s user 0m0.171s sys 0m3.539s ``` After: ``` $ time zfs list -d 1 -s name -o name,guid,available -H -p >/dev/null real 0m0.027s user 0m0.002s sys 0m0.026s ``` Signed-off-by: Joel Low <joel@joelsplace.sg>
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optimise pool listing for pools with many datasets
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