Method, apparatus and computer programs providing cluster-wide page management
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United States of America Patent
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Oct 27, 2015
Grant Date -
Jul 17, 2014
app pub date -
Jan 16, 2013
filing date -
Jan 16, 2013
priority date (Note) -
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Abstract
An exemplary method in accordance with embodiments of this invention includes, at a virtual machine that forms a part of a cluster of virtual machines, computing a key for an instance of a memory page that is to be swapped out to a shared memory cache that is accessible by all virtual machines of the cluster of virtual machines; determining if the computed key is already present in a global hash map that is accessible by all virtual machines of the cluster of virtual machines; and only if it is determined that the computed key is not already present in the global hash map, storing the computed key in the global hash map and the instance of the memory page in the shared memory cache.
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