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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.:

US 7765550 B1

PDFFull Text
Date of Patent:
Jul. 27, 2010

Filed:

May. 26, 2005

System for controlling context switch of deferred requests using counter and flag setting of thread accessing shared resource or entering code region

Applicants:

Paul Gootherts, Santa Clara, CA (US);

Douglas Larson, Santa Clara, CA (US);

Inventors:

Paul Gootherts, Santa Clara, CA (US);

Douglas Larson, Santa Clara, CA (US);

Assignee:

Hewlett-Packard Development Company, L.P., Houston, TX (US);

Attorney:
Primary Examiner:

Meng-Ai An

Assistant Examiner:

Camquy Truong

Int. Cl.
CPC ...
G06F 9/46 (2006.01); G06F 12/00 (2006.01); G06F 13/24 (2006.01); G06F 7/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an embodiment of the invention, a method for a memory-mapped lazy preemption control, the method includes: incrementing a counter value if an operating system attempts to involuntarily context switch out a thread and fails to context switch out the thread because the thread has a flag set; checking a counter value to determine a degree of abusiveness of a thread; and based upon the degree of abusiveness, determining if a voluntary contact switch out should be performed or should not be performed on the thread.

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Gootherts, Paul. (2010). System for controlling context switch of deferred requests using counter and flag setting of thread accessing shared resource or entering code region (U.S. Patent No. 7765550). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7765550

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