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.:
Date of Patent:
Jan. 08, 2008
Filed:
May. 20, 2004
Men-chow Chiang, Austin, TX (US);
Kaivalya M. Dixit, Austin, TX (US);
Sujatha Kashyap, Austin, TX (US);
Men-Chow Chiang, Austin, TX (US);
Kaivalya M. Dixit, Austin, TX (US);
Sujatha Kashyap, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A control mechanism that allows individual applications to turn hardware prefetch on or off is provided. By preliminary trial run one can determine precisely whether an application will benefit or suffer from hardware prefetch. The selective control of prefetching by individual applications is made possible by associating a status bit with individual processes in the machine status word of each processor. Using this prefetch bit, a process turns prefetching on or off to its own advantage in the processor core immediately after a context switch.