>>>>> "gm" == Gary Mills <mi...@cc.umanitoba.ca> writes:

    gm> destroys the oldest snapshots and creates new ones, both
    gm> recursively.

I'd be curious if you try taking the same snapshots non-recursively
instead, does the pause go away?  

Because recursive snapshots are special: they're supposed to
atomically synchronize the cut-point across all the filesystems
involved, AIUI.  I don't see that recursive destroys should be
anything special though.

    gm> Is it destroying old snapshots or creating new ones that
    gm> causes this dead time?

sortof seems like you should tell us this, not the other way
around. :)  Seriously though, isn't that easy to test?  And I'm curious
myself too.

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