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:
Mar. 24, 2020

Filed:

Jul. 28, 2016
Applicant:

Cavium, Llc, Santa Clara, CA (US);

Inventors:

Shubhendu Sekhar Mukherjee, Southborough, MA (US);

Michael Bertone, Marlborough, MA (US);

David Albert Carlson, Haslet, TX (US);

Richard Eugene Kessler, Northborough, MA (US);

Wilson Snyder, Holliston, MA (US);

Assignee:

Cavium, LLC, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0888 (2016.01); G06F 12/0811 (2016.01); G06F 12/084 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0888 (2013.01); G06F 12/084 (2013.01); G06F 12/0811 (2013.01); G06F 2212/1024 (2013.01);
Abstract

Managing memory access requests for a plurality of processor cores includes: storing admission control information for determining whether or not to admit a predetermined type of memory access request into a shared resource that is shared among the processor cores and includes one or more cache levels of a hierarchical cache system and at least one memory controller for accessing a main memory; determining whether or not a memory access request of the predetermined type made on behalf of a first processor core should be admitted into the shared resource based at least in part on the stored admission control information; and updating the admission control information based on a latency of a response to a particular memory access request admitted into the shared resource, where the updating depends on whether the response originated from a particular cache level included in the shared resource or from the main memory.


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