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.
Patent No.:
Date of Patent:
Jan. 10, 2012
Filed:
Apr. 16, 2007
Applicants:
Minwen Ji, Los Altos, CA (US);
Carl A. Waldspurger, Palo Alto, CA (US);
John Zedlewski, Cambridge, MA (US);
Inventors:
Minwen Ji, Los Altos, CA (US);
Carl A. Waldspurger, Palo Alto, CA (US);
John Zedlewski, Cambridge, MA (US);
Assignee:
VMware, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 9/46 (2006.01); G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cost-benefit metric for load balancing virtual machines is used to estimate a net gain in resource availability achieved by a proposed virtual machine migration. The cost-benefit metric can be used together with any other known metrics to evaluate candidate migrations. The metric takes into account stability of loads as well as migration cost, hence can protect a system from thrashing, i.e., frequently migrating virtual machines without gaining resource availability.