The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 13, 2022

Filed:

Jun. 14, 2021
Applicant:

Marvell Asia Pte Ltd, Singapore, SG;

Inventors:

Utkarsh Mathur, San Jose, CA (US);

Harold W. Cain, III, Raleigh, NC (US);

Assignee:

Marvell Asia Pte, Ltd., Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/0862 (2016.01); G06F 12/0875 (2016.01); G06F 9/32 (2018.01); G06F 9/38 (2018.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 9/324 (2013.01); G06F 9/3802 (2013.01); G06F 9/3818 (2013.01); G06F 12/0875 (2013.01); G06F 2212/1021 (2013.01);
Abstract

Managing prefetch requests associated with memory access requests includes storing stream information associated with multiple streams. At least one stream was recognized based on an initial subset of memory access requests within a previously performed set of related memory access requests and is associated with stream information that includes stream matching information and stream length information. After the previously performed set has ended, a matching memory access request is identified that matches with a corresponding matched stream based at least in part on stream matching information within stream information associated with the matched stream. In response to identifying the matching memory access request, the managing determines whether or not to perform a prefetch request for data at an address related to a data address in the matching memory access request based at least in part on stream length information within the stream information associated with the matched stream.


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