Compressed cache for swap pages
modulename: zswap.ko
configname: CONFIG_ZSWAP
Linux Kernel Configuration
└─>Memory Management options
└─>Support for paging of anonymous memory (swap)
└─>Compressed cache for swap pages
In linux kernel since version 3.10 (release Date: 2013-06-30)
A lightweight compressed cache for swap pages. It takes
pages that are in the process of being swapped out and attempts to
compress them into a dynamically allocated RAM-based memory pool.
This can result in a significant I/O reduction on swap device and,
in the case where decompressing from RAM is faster than swap device
reads, can also improve workload performance.
pages that are in the process of being swapped out and attempts to
compress them into a dynamically allocated RAM-based memory pool.
This can result in a significant I/O reduction on swap device and,
in the case where decompressing from RAM is faster than swap device
reads, can also improve workload performance.