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:
Oct. 27, 2020

Filed:

Dec. 11, 2015
Applicant:

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

Inventors:

Keerthi B. Kumar, Bangalore, IN;

Brahadambal Srinivasan, Bangalore, IN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 9/455 (2018.01); G06F 12/1027 (2016.01); G06F 12/109 (2016.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 9/5077 (2013.01); G06F 12/109 (2013.01); G06F 12/1027 (2013.01); G06F 3/0604 (2013.01); G06F 3/0617 (2013.01); G06F 3/0647 (2013.01); G06F 3/0688 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45583 (2013.01); G06F 2009/45591 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/152 (2013.01); G06F 2212/68 (2013.01);
Abstract

A method for improving accuracy of high resolution timers in a live partition migration comprises determining a status of each page of a plurality of pages to be copied from a source partition to a target partition during the live partition migration. One or more pages of the plurality of pages correspond to a respective high resolution timer. The method comprises determining that each of the one or more pages corresponding to a respective high resolution timer has a clean status. A clean status indicates that the corresponding page has been copied to the target partition and has not been modified subsequent to being copied to the target partition. The method also comprises halting operation of the source partition and initiating operation of the target partition in response to determining that each of the one or more pages corresponding to a respective high resolution timer has a clean status.


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