The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 22, 2017

Filed:

Mar. 14, 2013
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Shoichi Takeuchi, Tokyo, JP;

Shuhei Matsumoto, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 9/5016 (2013.01); G06F 9/45558 (2013.01); G06F 9/5027 (2013.01); G06F 9/5077 (2013.01); G06F 2009/4557 (2013.01);
Abstract

A scheduling method whereby a virtualization unit, which has multiple nodes containing physical CPUs and physical memories, and which operates a virtual computer by generating logical partitions from the computer resources of the multiple nodes, allocates a physical CPU to the logical CPU. The multiple nodes are coupled via an interconnect, and the virtualization unit selects the physical CPU to be allocated to the logical CPU, and measures performance information related to the performance when the physical memory is accessed from the logical CPU. When the performance information satisfies a prescribed threshold value the physical CPU allocated to the logical CPU is selected from the same node as that of the previously allocated physical CPU, and when the performance information does not satisfy the prescribed threshold value the physical CPU allocated to the logical CPU is selected from a different node than the node of the previously allocated physical CPU.


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