ADAPTIVE DATA PREFETCHING

A system and method for adaptive data prefetching in a processor enables adaptive modification of parameters associated with a prefetch operation. A stride pattern in successive addresses of a memory operation may be detected, including determining a stride length (L). Prefetching of memory operatio...

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Bibliographic Details
Main Authors PAVLOU DEMOS, KOSINSKI STEFFEN, HYUSEINOVA MIREM, LATORRE FERNANDO, GOETTSCHE RALF, LOPEZ PEDRO, MOHANDRU VARUN K
Format Patent
LanguageEnglish
Published 21.05.2015
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A system and method for adaptive data prefetching in a processor enables adaptive modification of parameters associated with a prefetch operation. A stride pattern in successive addresses of a memory operation may be detected, including determining a stride length (L). Prefetching of memory operations may be based on a prefetch address determined from a base memory address, the stride length L, and a prefetch distance (D). A number of prefetch misses may be counted at a miss prefetch count (C). Based on the value of the miss prefetch count C, the prefetch distance D may be modified. As a result of adaptive modification of the prefetch distance D, an improved rate of cache hits may be realized.
Bibliography:Application Number: US201313976325