Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2003-12-18
2009-11-10
An, Meng-Ai (Department: 2195)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
Reexamination Certificate
active
07617499
ABSTRACT:
An apparatus, program product and method initiate, in connection with a context switch operation, a prefetch of at least one instruction likely to be executed by a thread prior to resuming execution of that thread. As a result, once it is known that a context switch will be performed to a particular thread, one or more instructions may be prefetched on behalf of that thread so that when execution of the thread is resumed, those instructions are more likely to be cached, or at least in the process of being retrieved into cache memory, thus enabling a thread to begin executing instructions more quickly than if the thread was required to fetch those instructions upon resumption of its execution.
REFERENCES:
patent: 4860192 (1989-08-01), Sachs et al.
patent: 5872985 (1999-02-01), Kimura
patent: 5893159 (1999-04-01), Schneider
patent: 5907702 (1999-05-01), Flynn et al.
patent: 5958045 (1999-09-01), Pickett
patent: 6014728 (2000-01-01), Baror
patent: 6073215 (2000-06-01), Snyder
patent: 6202130 (2001-03-01), Scales et al.
patent: 6253306 (2001-06-01), Ben-Meir et al.
patent: 6311260 (2001-10-01), Stone et al.
patent: 6535962 (2003-03-01), Mayfield et al.
patent: 6574712 (2003-06-01), Kahle et al.
patent: 6697935 (2004-02-01), Borkenhagen et al.
patent: 6845501 (2005-01-01), Thompson et al.
patent: 6976147 (2005-12-01), Isaac et al.
patent: 7260704 (2007-08-01), Cooksey et al.
patent: 2003/0023663 (2003-01-01), Thompson et al.
patent: 2004/0163083 (2004-08-01), Wang et al.
patent: 2005/0149697 (2005-07-01), Enright et al.
patent: 2006/0294347 (2006-12-01), Zou et al.
patent: 1276888 (2000-12-01), None
patent: 1300006 (2001-06-01), None
U.S. Appl. No. 09/458,883, filed Dec. 10, 1999, by Puzak et al.
Bradford Jeffrey Powers
Kossman Harold F.
Mullins Timothy John
An Meng-Ai
International Business Machines - Corporation
Wai Eric C
Wood Herron & Evans LLP
LandOfFree
Context switch instruction prefetching in multithreaded... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Context switch instruction prefetching in multithreaded..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Context switch instruction prefetching in multithreaded... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4126568