A PAGE SPLITTING MECHANISM FOR TRANSPARENT DISTRIBUTED SHARED MEMORY IMPLEMENTATIONS IN PROCESS MIGRATION CLUSTER ENVIRONMENTS

摘要

A method and system for identifying and eliminating false VM-page sharing in DSM systems. False VM-page sharing instances is determined whenever the same VM-page is required for accessing different objects residing on that VM-page. The falsely shared VM-pages are split into a plurality of smaller VM-pages, such that each smaller VM-page includes at least one of the objects. The falsely shared VM-pages are set invalid and whenever a request for one of the falsely shared VM-pages is received, the system determines which object need to be accessed and one of the smaller VM-pages is provided accordingly.