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LWN article on the various memory compression methods

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curaga:
http://lwn.net/Articles/545244/

It details the differences between zram, zcache and zswap.

coreplayer2:
Very interesting, thanks

curaga:
How it all relates to TC:

We use zram by default, and ship zcache so it can be configured by the user if needed.

The name of the bootcode, nozswap, comes from back when zram was called compcache.

tinypoodle:

--- Quote from: curaga on April 12, 2013, 09:23:21 AM ---We use zram by default, and ship zcache so it can be configured by the user if needed.

The name of the bootcode, nozswap, comes from back when zram was called compcache.

--- End quote ---

As zswap just has been introduced in main - while zram and zcache remain in staging at current - I'd like to suggest considering renaming the "nozswap" boot code, in order to avoid (future) confusion.

For reference:
http://cateee.net/lkddb/web-lkddb/ZSWAP.html
http://cateee.net/lkddb/web-lkddb/ZRAM.html
http://cateee.net/lkddb/web-lkddb/ZCACHE.html

curaga:
Yes, with the 5.0 major release breaking the existing use would be more acceptable. Any suggestions for a good, short name? I'm out of them for the moment.

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