1config ZCACHE
2	tristate "Dynamic compression of swap pages and clean pagecache pages"
3	depends on CLEANCACHE || FRONTSWAP
4	select XVMALLOC
5	select LZO_COMPRESS
6	select LZO_DECOMPRESS
7	default n
8	help
9	  Zcache doubles RAM efficiency while providing a significant
10	  performance boosts on many workloads.  Zcache uses lzo1x
11	  compression and an in-kernel implementation of transcendent
12	  memory to store clean page cache pages and swap in RAM,
13	  providing a noticeable reduction in disk I/O.
14