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SYSTEMS AND METHODS FOR MEMORY DEDUPLICATION BY ORIGIN HOST IN VIRTUAL MACHINE LIVE MIGRATION

  • US 20150052322A1
  • Filed: 08/16/2013
  • Published: 02/19/2015
  • Est. Priority Date: 08/16/2013
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • determining, by a hypervisor executing on an origin host computer system, a first identifier identifying a first physical memory range, the first physical memory range mapped to a first virtual memory range in a virtual address space of a first virtual machine undergoing live migration from the origin host computer system to a destination host computer system;

    determining a second identifier identifying a second physical memory range, the second physical memory range mapped to a second virtual memory range in a virtual address space of a second virtual machine undergoing live migration from the origin host computer system to the destination host computer system;

    determining that the first identifier and the second identifier identify the same physical memory range; and

    notifying the destination host computer system that the first virtual memory range and the second virtual memory range have identical contents.

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