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CONFIG_ZRAM: Compressed RAM block device support

General informations

The Linux kernel configuration item CONFIG_ZRAM has multiple definitions:

Compressed RAM block device support found in drivers/block/zram/Kconfig

The configuration item CONFIG_ZRAM:

Help text

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.

Compressed RAM block device support found in drivers/staging/zram/Kconfig

The configuration item CONFIG_ZRAM:

Help text

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: <https://compcache.googlecode.com/>

Hardware

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