2010-06-01 08:01:24 +00:00
|
|
|
config ZRAM
|
|
|
|
|
tristate "Compressed RAM block device support"
|
2012-06-25 16:14:36 +00:00
|
|
|
depends on BLOCK && SYSFS && ZSMALLOC
|
2010-06-01 08:01:24 +00:00
|
|
|
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.
|
2011-01-28 14:59:26 +00:00
|
|
|
|
|
|
|
|
config ZRAM_DEBUG
|
|
|
|
|
bool "Compressed RAM block device debug support"
|
|
|
|
|
depends on ZRAM
|
|
|
|
|
default n
|
|
|
|
|
help
|
|
|
|
|
This option adds additional debugging code to the compressed
|
|
|
|
|
RAM block device driver.
|
