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:
Aug. 02, 2022

Filed:

May. 29, 2020
Applicant:

Emc Ip Holding Company Llc, Hopkinton, MA (US);

Inventors:

Hugo De Oliveira Barbalho, Rio de Janeiro, BR;

Jonas F. Dias, Rio de Janeiro, BR;

Vinicius Michel Gottin, Rio de Janeiro, BR;

Assignee:

EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/123 (2016.01); G06F 12/0891 (2016.01); G06F 21/78 (2013.01); G06F 12/0882 (2016.01); G06F 12/0871 (2016.01);
U.S. Cl.
CPC ...
G06F 12/123 (2013.01); G06F 12/0871 (2013.01); G06F 12/0882 (2013.01); G06F 12/0891 (2013.01); G06F 21/78 (2013.01);
Abstract

One example method includes determining a fall through threshold value for a cache, computing a length 's' of a sequence that is close to LRU eviction, and the length 's' is computed when a current fall through metric value is greater than the fall through threshold value, when the sequence length ‘s’ is greater than a predetermined threshold length ‘k,’ performing a first shift of an LRU position to define a protected queue of the cache, initializing a counter with a value of ‘r’, decrementing the counter each time a requested page is determined to be included in the protected queue, until ‘r’=0, and performing a second shift of the LRU position.


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