OPERATIONAL MODES FOR PREFETCH GENERATION CIRCUITRY

Abstract: there is provided an apparatus, a system, a chip containing product, a method and a medium. the apparatus comprises prefetch generation circuitry configured to generate prefetch requests. the apparatus is also provided with control circuitry configured to determine an operational mode for the prefetch generation circuitry from a plurality of operational modes comprising an offline mode in which prefetch requests are not generated and at least one online mode in which prefetch requests are generated. the control circuitry is configured to switch the prefetch generation circuitry from the online mode to the offline mode for an offline period based on a mode switching criterion. the control circuitry is responsive to a switch to the offline mode, to apply modified switching criteria to determine whether the prefetch generation circuitry should operate in the offline mode during a future period occurring subsequent to the offline period.

Inventor(s): Ugo CASTORINA, Damien Matthieu Valentin CATHRINE, Diogo Augusto Pereira MARQUES, Marco COLETTA

CPC Classification: G06F12/0862 (with prefetch)

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