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. 27, 2019

Filed:

Nov. 29, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Sanjeev Ghai, Round Rock, TX (US);

Guy L. Guthrie, Austin, TX (US);

Hugh Shen, Round Rock, TX (US);

Derek E. Williams, Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G06F 9/38 (2018.01); G06F 9/54 (2006.01); G06F 9/30 (2018.01); G06F 12/08 (2016.01);
U.S. Cl.
CPC ...
G06F 9/3851 (2013.01); G06F 9/3012 (2013.01); G06F 9/546 (2013.01); G06F 12/08 (2013.01);
Abstract

A data processing system includes a plurality of processor cores each having a respective store-through upper level cache and a store-in banked lower level cache. Store requests of the plurality of processor cores destined for the banked lower level cache are buffered in multiple store queues including a first store queue and a second store queue. In response to determining that the multiple store queues contain store requests targeting a common bank of the banked lower level cache, store requests from the first store queue are temporarily favored for selection for issuance to the banked lower level cache over those in the second store queue.


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