Context switch data prefetching in multithreaded computer

Details Context switch data prefetching in multithreaded computer Context switch data prefetching in multithreaded computer

2003-12-18

2009-02-17

Lee, Thomas (Department: 2195)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C718S102000, C718S107000, C711S204000, C711S140000, C711S123000, C711S124000, C711S125000, C712S205000, C712S207000, C712S228000, C712S229000, C712S230000, C712S237000

Reexamination Certificate

active

07493621

ABSTRACT:
An apparatus, program product and method initiate, in connection with a context switch operation, a prefetch of data likely to be used 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, data may be prefetched on behalf of that thread so that when execution of the thread is resumed, more of the working state for the thread is likely to be cached, or at least in the process of being retrieved into cache memory, thus reducing cache-related performance penalties associated with context switching.

REFERENCES:
patent: 5872985 (1999-02-01), Kimura
patent: 5893159 (1999-04-01), Schneider
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.

Affiliated with

Also associated with

Rating

Context switch data prefetching in multithreaded computer 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 data prefetching in multithreaded computer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Context switch data prefetching in multithreaded computer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4072119