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About: Zswap     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Software106566077, within Data Space : dbpedia.org associated with source document(s)

Type: Thingworkyago:WikicatLinuxKernelFeaturesyago:Abstraction100002137yago:Code106355894yago:CodingSystem106353757yago:Cognition100023271yago:Communication100033020yago:Concept105835747yago:Content105809192yago:Feature105849789yago:Idea105833840yago:Property105849040yago:PsychologicalFeature100023100yago:Writing106359877yago:WrittenCommunication106349220yago:Software106566077 New Facet based on Instances of this Class

zswap is a Linux kernel feature that provides a compressed write-back cache for swapped pages, as a form of virtual memory compression. Instead of moving memory pages to a swap device when they are to be swapped out, zswap performs their compression and then stores them into a memory pool dynamically allocated in the system RAM. Later writeback to the actual swap device is deferred or even completely avoided, resulting in a significantly reduced I/O for Linux systems that require swapping; the tradeoff is the need for additional CPU cycles to perform the compression.