PREFETCH STORE FILTERING

A data processing apparatus is provided. Prefetch circuitry generates a prefetch request for a cache line prior to the cache line being explicitly requested. The cache line is predicted to be required for a store operation in the future. Issuing circuitry issues the prefetch request to a memory hier...

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Bibliographic Details
Main Authors MARONCELLI, Luca, AIRAUD, Cedric Denis Robert, EID, Peter Raphael, BEGON, Florent
Format Patent
LanguageEnglish
Published 25.01.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A data processing apparatus is provided. Prefetch circuitry generates a prefetch request for a cache line prior to the cache line being explicitly requested. The cache line is predicted to be required for a store operation in the future. Issuing circuitry issues the prefetch request to a memory hierarchy and filter circuitry filters the prefetch request based on at least one other prefetch request made to the cache line, to control whether the prefetch request is issued by the issuing circuitry.
Bibliography:Application Number: US202218147068