发明名称 PAGE COMPRESSION STRATEGY FOR IMPROVED PAGE OUT PROCESS
摘要 A page compression strategy classifies uncompressed pages selected for compression. Similarly classified pages are compressed and bound into a single logical page. For logical pages having pages with more than one classification, a weighting factor is determined for the logical page.
申请公布号 US2016246504(A1) 申请公布日期 2016.08.25
申请号 US201615155511 申请日期 2016.05.16
申请人 International Business Machines Corporation 发明人 Bhat Suma M. B.;Gaonkar Chetan L.;Thatikonda Vamshi K.
分类号 G06F3/06;G06F9/455 主分类号 G06F3/06
代理机构 代理人
主权项 1. A computer system comprising: a processor set; and a computer readable storage medium; wherein: the processor set is structured, located, connected, and/or programmed to run program instructions stored on the computer readable storage medium; and the program instructions which, when executed by the processor set, cause the processor set to improve a page out process by: identifying a set of uncompressed pages in a primary memory storage; assigning to each uncompressed page in the set of uncompressed pages one or more corresponding classes from a pre-determined set of classes; compressing a plurality of pages in the set of uncompressed pages, a first set of pages of the plurality of pages having been assigned to a first class are compressed into a single logical page, a second set of pages of the plurality of pages having been assigned to a corresponding class different than the first class are compressed into a separate logical page different than the single logical page; determining a page weight factor for the single logical page; storing the single logical page in a secondary memory storage; paging in the single logical page into the primary memory storage; prompting a hypervisor to steal the single logical page, based, at least in part, on the page weight factor; wherein: the page weight factor is made up of component weight factors assigned individually to each page within the single logical page; paging in the single logical page causes only a set of compressed pages assigned to the same class to be paged into the primary memory storage; and the first class of pages is a member of a group consisting of: working segment pages;file segment pages;client pages; andklock pages.
地址 Armonk NY US