On 2016-03-16 02:51, Chris Murphy wrote:
On Tue, Mar 15, 2016 at 10:23 PM, Nazar Mokrynskyi <nazar@xxxxxxxxxxxxxx> wrote:
Sounds like a really good idea!
I'll try to implement in in my backup tool, but it might take some time to
see real benefit from it (or no benefit:)).
There is a catch. I'm not sure how much testing deleting 100
subvolumes at once gets. It should work. I haven't looked in xfstests
to see how much of this is being tested. So it's possible you're
testing it. So be ready.
I've actually tested bulk removal of large numbers of snapshots multiple
times before (it's actually one of the things that isn't in xfstests
that I check when testing patches, I usually test power of two groups
from 16 up to 256 at a time). It works, but it may tie up most of the
disk bandwidth for a while depending on what type of storage you're using.
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