Technique for prefetching data based on a stride pattern
US7831800B2 · kind B2 · utility
3Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | May 17, 2007 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Aug 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processor system (100) includes a central processing unit (102) and a prefetch engine (110). The prefetch engine (110) is coupled to the central processing unit (102). The prefetch engine (110) is configured to detect, when data associated with the central processing unit (102) is read from a memory (114), a stride pattern in an address stream based upon whether sums of a current stride and a previous stride are equal for a number of consecutive reads. The prefetch engine (110) is also configured to prefetch, for the central processing unit (102), data from the memory (114) based on the detected stride pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.