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HOT PAGE SELECTION IN MULTI-LEVEL MEMORY HIERARCHIES

United States Patent Application

20160378655
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Systems, apparatuses, and methods for sorting memory pages in a multi-level heterogeneous memory architecture. The system may classify pages into a first "hot" category or a second "cold" category. The system may attempt to place the "hot" pages into the memory level(s) closest to the systems' processor cores. The system may track parameters associated with each page, with the parameters including number of accesses, types of accesses, power consumed per access, temperature, wearability, and/or other parameters. Based on these parameters, the system may generate a score for each page. Then, the system may compare the score of each page to a threshold. If the score of a given page is greater than the threshold, the given page may be designated as "hot". If the score of the given page is less than the threshold, the given page may be designated as "cold".
Blagodurov, Sergey (Bellevue, WA), Loh, Gabriel H. (Bellevue, WA), Meswani, Mitesh R. (Austin, TX)
14/ 752,408
June 26, 2015
BACKGROUND [0001] The invention described herein was made with government support under prime contract number DE-AC52-07NA27344, subcontract number B600716, with Lawrence Livermore National Laboratory awarded by the United States Department of Energy. The United States Government has certain rights in the invention.