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:
Feb. 23, 2010
Filed:
Aug. 26, 2004
Roch Georges Archambault, North York, CA;
Robert James Blainey, Newmarket, CA;
Yaoqing Gao, North York, CA;
Allan Russell Martin, Toronto, CA;
James Lawrence Mcinnes, Toronto, CA;
Francis Patrick O'connell, Austin, TX (US);
Roch Georges Archambault, North York, CA;
Robert James Blainey, Newmarket, CA;
Yaoqing Gao, North York, CA;
Allan Russell Martin, Toronto, CA;
James Lawrence McInnes, Toronto, CA;
Francis Patrick O'Connell, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism for minimizing effective memory latency without unnecessary cost through fine-grained software-directed data prefetching using integrated high-level and low-level code analysis and optimizations is provided. The mechanism identifies and classifies streams, identifies data that is most likely to incur a cache miss, exploits effective hardware prefetching to determine the proper number of streams to be prefetched, exploits effective data prefetching on different types of streams in order to eliminate redundant prefetching and avoid cache pollution, and uses high-level transformations with integrated lower level cost analysis in the instruction scheduler to schedule prefetch instructions effectively.