| Dan Magenheimer | 6630889 | 2011-02-06 19:27:09 -0800 | [diff] [blame] | 1 | config 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. |