Technique for prefetching data based on a stride pattern

Details Technique for prefetching data based on a stride pattern Technique for prefetching data based on a stride pattern

2007-05-17

2010-11-09

Kim, Matt (Department: 2186)

Electrical computers and digital processing systems: memory

Address formation

Generating prefetch, look-ahead, jump, or predictive address

C711S220000, C711S217000, C711SE12057

Reexamination Certificate

active

07831800

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.

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patent: 2007/0005934 (2007-01-01), Rotithor et al.

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