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CONFIG_ZCACHE: Dynamic compression of swap pages and clean pagecache pages
General informations
The Linux kernel configuration item CONFIG_ZCACHE has multiple definitions:
Dynamic compression of swap pages and clean pagecache pages found in drivers/staging/zcache/Kconfig
The configuration item CONFIG_ZCACHE:
- prompt: Dynamic compression of swap pages and clean pagecache pages
- type: bool
- depends on:
CONFIG_CRYPTO = CONFIG_y && CONFIG_SWAP = CONFIG_y && CONFIG_CLEANCACHE && CONFIG_FRONTSWAP - defined in drivers/staging/zcache/Kconfig
- found in Linux kernels: 3.4–3.9
- modules built:
zcache
Help text
Zcache doubles RAM efficiency while providing a significant performance boosts on many workloads. Zcache uses compression and an in-kernel implementation of transcendent memory to store clean page cache pages and swap in RAM, providing a noticeable reduction in disk I/O.
Dynamic compression of swap pages and clean pagecache pages found in drivers/staging/zcache/Kconfig
The configuration item CONFIG_ZCACHE:
- prompt: Dynamic compression of swap pages and clean pagecache pages
- type: tristate
- depends on:
CONFIG_CRYPTO = CONFIG_y && CONFIG_SWAP = CONFIG_y && CONFIG_CLEANCACHE && CONFIG_FRONTSWAP - defined in drivers/staging/zcache/Kconfig
- found in Linux kernels: 2.6.39, 3.0–3.3, 3.10-rc+HEAD
- modules built:
zcache
Help text
Zcache doubles RAM efficiency while providing a significant performance boosts on many workloads. Zcache uses compression and an in-kernel implementation of transcendent memory to store clean page cache pages and swap in RAM, providing a noticeable reduction in disk I/O.
Hardware
LKDDb
Raw data from LKDDb:
lkddb module zcache CONFIG_ZCACHE : drivers/staging/zcache/Kconfig : "Dynamic compression of swap pages and clean pagecache pages"
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