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. 29, 2024

Filed:

Oct. 29, 2021
Applicant:

Blackberry Limited, Waterloo, CA;

Inventor:

Elad Lahav, Stittsville, CA;

Assignee:

BlackBerry Limited, Waterloo, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/48 (2006.01); G06F 9/52 (2006.01);
U.S. Cl.
CPC ...
G06F 9/4881 (2013.01); G06F 9/526 (2013.01);
Abstract

In some examples, a system includes a kernel scheduler to schedule, for execution, threads to run in an address space of an operating system (OS) kernel according to respective priorities associated with the threads, where each thread of the threads has a user persona and a kernel persona. The kernel scheduler switches each respective thread of the threads to the kernel persona of the respective thread in response to scheduling the respective thread for execution responsive to a kernel call from the respective thread. The kernel scheduler preempts a thread in the kernel persona of the thread that is actively executing in response to an event.


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