default or selected kernelversion does not have config value CONFIG_ZCACHE.
Result is shown for kernelversion 6.2.5
Dynamic compression of swap pages and clean pagecache pages
modulename: zcache.ko
configname: CONFIG_ZCACHE
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Dynamic compression of swap pages and clean pagecache pages
In linux kernel since version 2.6.39 (release Date: 2011-05-18)
Zcache doubles RAM efficiency while providing a significant
performance boosts on many workloads. Zcache uses lzo1x
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.
performance boosts on many workloads. Zcache uses lzo1x
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.