| config ZRAM | |
| tristate "Compressed RAM block device support" | |
| depends on BLOCK && SYSFS && ZSMALLOC | |
| 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. | |
| config ZRAM_LZ4_COMPRESS | |
| bool "Enable LZ4 algorithm support" | |
| depends on ZRAM | |
| select LZ4_COMPRESS | |
| select LZ4_DECOMPRESS | |
| default n | |
| help | |
| This option enables LZ4 compression algorithm support. Compression | |
| algorithm can be changed using `comp_algorithm' device attribute. |