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:
Apr. 25, 2023

Filed:

Sep. 30, 2021
Applicant:

Amazon Technologies, Inc., Seattle, WA (US);

Inventors:

Martin Pohlack, Dresden, DE;

Peter Barry, Limerick, IE;

Filippo Sironi, Dresden, DE;

Assignee:

Amazon Technologies, Inc., Seattle, WA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/1045 (2016.01); G06F 12/0882 (2016.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0604 (2013.01); G06F 3/065 (2013.01); G06F 3/0613 (2013.01); G06F 3/0673 (2013.01); G06F 12/0882 (2013.01); G06F 12/1054 (2013.01); G06F 12/1063 (2013.01);
Abstract

A computing device including executable processes may determine that a future likelihood of access for virtual memory pages of an executable process are below a threshold likelihood of access based on an execution status of the executable process or a tracking of memory accesses to the virtual memory pages of the executable process. Responsive to this determination, memory pages found to store contents matching that of memory pages mapped to other processes may be unmapped from the process and released for reuse by the computing device. The virtual memory pages may then be marked as being shared with the similar memory pages mapped to the other processes. At a later time, the memory pages of the process may be configured to be non-shared, the configuring including either copying respective shared pages to non-shared pages or enabling a processor exception on access to the memory pages.


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