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:
May. 04, 2021

Filed:

Aug. 31, 2018
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Michael Kardonik, Austin, TX (US);

David Philip Lapp, Ottawa, CA;

Assignee:

NXP USA, INC., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06F 16/22 (2019.01); G06F 16/2455 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2255 (2019.01); G06F 16/24552 (2019.01);
Abstract

A hash accelerator is provided that receives a hash key value from a processor core, determines a main memory address storing a hash table entry corresponding to the hash key value, and causes the hash table entry to be stored in a cache memory accessible by the processor core. The hash accelerator is configured to execute the same hash function that the processor core executes, and if the hash accelerator is faster than the software executing on the processor core, the hash table entry can be available to the core processor from cache memory by the time the processor core attempts to access the entry. This avoids a cache miss by the processor core, thereby improving overall efficiency of routines executed by the processor core.


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