1config ZRAM 2 tristate "Compressed RAM block device support" 3 depends on BLOCK && SYSFS && ZSMALLOC 4 select LZO_COMPRESS 5 select LZO_DECOMPRESS 6 default n 7 help 8 Creates virtual block devices called /dev/zramX (X = 0, 1, ...). 9 Pages written to these disks are compressed and stored in memory 10 itself. These disks allow very fast I/O and compression provides 11 good amounts of memory savings. 12 13 It has several use cases, for example: /tmp storage, use as swap 14 disks and maybe many more. 15 16 See zram.txt for more information. 17 Project home: <https://compcache.googlecode.com/> 18 19config ZRAM_DEBUG 20 bool "Compressed RAM block device debug support" 21 depends on ZRAM 22 default n 23 help 24 This option adds additional debugging code to the compressed 25 RAM block device driver. 26