发明名称 |
SYSTEMS AND METHODS FOR MEMORY DEDUPLICATION BY ORIGIN HOST IN VIRTUAL MACHINE LIVE MIGRATION |
摘要 |
Systems and methods for memory de-duplication in a virtual machine undergoing live migration. An example method may comprise: determining 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 a 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. |
申请公布号 |
US2015052322(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
US201313968795 |
申请日期 |
2013.08.16 |
申请人 |
Red Hat Israel, Ltd. |
发明人 |
Tsirkin Michael;Noel Karen |
分类号 |
G06F3/06 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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. |
地址 |
Raanana IL |