Virtual memory compression: Difference between revisions

Revision as of 16:47, 12 July 2020

Revision as of 07:23, 13 July 2021

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* In early 2008, a [[Linux]] project named [[zram]] (originally called compcache) was released; in a 2013 update, it was incorporated into [[Chrome&nbsp;OS]]<ref name="zram-google-page"/> and [[Android (operating system)|Android]]&nbsp;4.4

* In 2010, IBM released Active Memory Expansion (AME) for [[AIX]] 6.1 which implements virtual memory compression.<ref name="IBM-AIX-AME"/>

* In 2012, some versions of the [[POWER7]]+ chip included the AME hardware acceleratoraccelerators using the [[842 compression algorithm]] for data compression support, used on AIX, for virtual memory compression.<ref name="IBM-POWER7+"/>. More recent POWER processors continue to support the feature.

* In December 2012, the [[zswap]] project was announced; it was merged into the [[Linux kernel mainline]] in September 2013.

* In June 2013, Apple announced that it would include virtual memory compression in [[OS&nbsp;X Mavericks]], using the Wilson-Kaplan WKdm algorithm.<ref name="Arstechnica"/><ref name="Willson_Usenix"/>