Re: de-duplication algos

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On Wed, May 13, 2015 at 04:35:53PM +0000, Hugo Mills wrote:
> On Wed, May 13, 2015 at 09:24:17AM -0700, Learner Study wrote:
> > Hello,
> > 
> > I have been reading on de-duplication and how algorithms such as Bloom
> > and Cuckoo filters are used for this purpose.
> > 
> > Does BTRFS dedup use any of these, or are there plans to incorporate
> > these in future?
> 
>    There was a long discussion on IRC about different approaches that
> could be taken. I think Mark Fasheh captured most of that somewhere --
> I thought he'd put it on the duperemove github site somewhere, but I
> can't see it right now.

The bloom filter for duperemove has been implemented (as of commit
b7c03422ea9fd11f915804df2b6598a6ed10dfce) and works fine, the memory
footprint is much lower than before.
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