Method, apparatus and computer programs providing cluster-wide page management
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United States of America Patent
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Apr 26, 2016
Grant Date -
Jul 17, 2014
app pub date -
Aug 15, 2013
filing date -
Jan 16, 2013
priority date (Note) -
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Abstract
A data processing system includes a plurality of virtual machines each having associated memory pages; a shared memory page cache that is accessible by each of the plurality of virtual machines; and a global hash map that is accessible by each of the plurality of virtual machines. The data processing system is configured such that, for a particular memory page stored in the shared memory page cache that is associated with two or more of the plurality of virtual machines, there is a single key stored in the global hash map that identifies at least a storage location in the shared memory page cache of the particular memory page. The system can be embodied at least partially in a cloud computing system.
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