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:
Sep. 19, 2017

Filed:

Nov. 11, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventor:

Paul Mackerras, Weston, AU;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/50 (2006.01); G06F 9/455 (2006.01); G06F 9/22 (2006.01);
U.S. Cl.
CPC ...
G06F 9/5077 (2013.01); G06F 9/223 (2013.01); G06F 9/45558 (2013.01); G06F 9/5083 (2013.01); G06F 2009/4557 (2013.01);
Abstract

An approach is provided to dynamically select a micro-threading (MT) mode of each core of a processor based on a load on each of the respective cores while the processor is running a hypervisor. The approach sets a core's micro-threading mode to a whole-core mode (MT1) in response to identifying that the load on the selected core is at a light load level, sets the core's micro-threading mode to a two-way micro-threading mode (MT2) in response to identifying that the load on the selected core has increased above the light load level, and sets the selected core's micro-threading mode to a four-way micro-threading mode (MT4) in response to identifying that the load on the selected core is at a high load level.


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