| config ZRAM |
| tristate "Compressed RAM block device support" |
| depends on BLOCK |
| select LZO_COMPRESS |
| select LZO_DECOMPRESS |
| default n |
| help |
| Creates virtual block devices called /dev/zramX (X = 0, 1, ...). |
| Pages written to these disks are compressed and stored in memory |
| itself. These disks allow very fast I/O and compression provides |
| good amounts of memory savings. |
| |
| It has several use cases, for example: /tmp storage, use as swap |
| disks and maybe many more. |
| |
| See zram.txt for more information. |
| Project home: http://compcache.googlecode.com/ |
| |
| config ZRAM_STATS |
| bool "Enable statistics for compressed RAM disks" |
| depends on ZRAM |
| default y |
| help |
| Enable statistics collection for compressed RAM devices. Statistics |
| are exported through ioctl interface, so you have to use zramconfig |
| program to get them. This adds only a minimal overhead. |
| |
| If unsure, say Y. |
| |
