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CONFIG_ZRAM: Compressed RAM block device support

General informations

The Linux kernel configuration item CONFIG_ZRAM:

• prompt: Compressed RAM block device support
• type: tristate
• depends on: CONFIG_BLOCK && CONFIG_SYSFS && CONFIG_ZSMALLOC
• defined in drivers/staging/zram/Kconfig
• found in Linux kernels: 2.6.36–2.6.39, 3.0–3.9, 3.10-rc+HEAD
• modules built: 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

LKDDb

Raw data from LKDDb:

• lkddb module zram CONFIG_ZRAM : drivers/staging/zram/Kconfig : "Compressed RAM block device support"

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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