| Nitin Gupta | 16a4bfb | 2010-06-01 13:31:24 +0530 | [diff] [blame] | 1 | config ZRAM |
| 2 | tristate "Compressed RAM block device support" |
| Sergey Senozhatsky | ebaf9ab | 2016-07-26 15:22:45 -0700 | [diff] [blame] | 3 | depends on BLOCK && SYSFS && ZSMALLOC && CRYPTO |
| 4 | select CRYPTO_LZO |
| Nitin Gupta | 16a4bfb | 2010-06-01 13:31:24 +0530 | [diff] [blame] | 5 | default n |
| 6 | help |
| 7 | Creates virtual block devices called /dev/zramX (X = 0, 1, ...). |
| 8 | Pages written to these disks are compressed and stored in memory |
| 9 | itself. These disks allow very fast I/O and compression provides |
| 10 | good amounts of memory savings. |
| 11 | |
| 12 | It has several use cases, for example: /tmp storage, use as swap |
| 13 | disks and maybe many more. |
| 14 | |
| 15 | See zram.txt for more information. |