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:
Dec. 16, 2025

Filed:

Jun. 28, 2022
Applicant:

Red Hat, Inc., Raleigh, NC (US);

Inventors:

Michael Tsirkin, Yokneam Illit, IL;

Andrea Arcangeli, Mineola, NY (US);

Assignee:

Red Hat, Inc., Raleigh, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45583 (2013.01);
Abstract

Systems and methods for enhancing memory management for virtual machines. An example method may comprise: accessing, by a hypervisor running on a host computer system, a data structure exposed by a virtual machine managed by the hypervisor, wherein the data structure includes an estimated next access time for one or more memory pages of a plurality of memory pages associated with the virtual machine; estimating a read latency time associated with the virtual machine; identifying, using the data structure, a memory page associated with an estimated next access time that satisfies a predefined condition with respect to the read latency time; and swapping out the memory page.


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