On Mon, Sep 26, 2011 at 1:55 PM, Jesus Cea <j...@jcea.es> wrote:
> I just upgraded to Solaris 10 Update 10, and one of the improvements
> is "zfs diff".
> Using the "birthtime" of the sectors, I would expect very high
> performance. The actual performance doesn't seems better that an
> standard "rdiff", though. Quite disappointing...
> Should I disable "atime" to improve "zfs diff" performance? (most data
> doesn't change, but "atime" of most files would change).

atime has nothing to do with it.

How much work zfs diff has to do depends on how much has changed
between snapshots.

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