Re: [dm-devel] [PATCG]DM: dm-compression: a compressed DM targetfor SSD

From: Alasdair G Kergon
Date: Sat Dec 28 2013 - 08:23:26 EST

On Sat, Dec 28, 2013 at 12:57:25PM +0000, Alasdair G Kergon wrote:
> To use this compression target above dm-thin (likely to prefer larger
> block sizes), for example, could the block sizes be adapatable /
> configurable?

So a key feature of the underlying thin provisioning needs to be
efficient tracking of a small sector size (which doesn't suit the
existing dm-thin target). This compression target could sometimes
benefit from a larger block size though, particularly where the
data above has large blocks.

(Could we name this something like 'microcompression'?)


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