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:
Mar. 05, 2019

Filed:

Jul. 27, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Giles R. Frazier, Austin, TX (US);

Michael Karl Gschwind, Chappaqua, NY (US);

Younes Manton, Toronto, CA;

Karl M. Taylor, Kanata, CA;

Brian W. Thompto, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2006.01); G06F 12/02 (2006.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 12/0253 (2013.01); G06F 12/0261 (2013.01); G06F 9/45504 (2013.01);
Abstract

Apparatus for a garbage collection is disclosed herein. The apparatus includes a processor that includes a load-monitored region register. A memory stores program code, which, when executed on the processor performs an operation for garbage collection, the operation includes specifying a load-monitored region within a memory managed by a runtime environment; enabling a load-monitored event-based branch configured to occur responsive to executing a first type of CPU instruction to load a pointer that points to a first location in the load-monitored region; performing a garbage collection process in background without pausing executing in the runtime environment; executing a CPU instruction of the first type to load a pointer that points to the first location in the load-monitored region; responsive to triggering a load-monitored event-based branch, moving an object pointed to by the pointer with a handler from the first location in memory to a second location in memory.


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