Data prefetcher with predictor capabilities
US6820173B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Nov 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method and article of manufacture are provided for retrieving information from memory. Initially, processor requests for information from a first memory are monitored. A future processor request for information is then predicted based on the previous step. Thereafter, one or more speculative requests are issued for retrieving information from the first memory in accordance with the prediction. The retrieved information is subsequently cached in a second memory for being retrieved in response to processor requests without accessing the first memory. By allowing multiple speculative requests to be issued, throughput of information in memory is maximized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.