公开(公告)号：US09213646B1

公开(公告)日：2015-12-15

申请号：US13922921

申请日：2013-06-20

Applicant: Seagate Technology LLC

Inventor： Margot Ann LaPanse ,  Joseph Masaki Baum ,  Stanton MacDonough Keeler ,  Michael Edward Baum ,  Thomas Dale Hosman ,  Robert Dale Murphy

IPC: G06F12/12 ,  G06F12/08

CPC classification number: G06F12/0871 ,  G06F12/121 ,  G06F2212/1016 ,  G06F2212/214 ,  G06F2212/224 ,  G06F2212/313

Abstract: Systems and methods are disclosed for cache data value tracking. In an embodiment, a controller may be configured to select data; set a node weight for the data representing a cache hit potential for the data; store a first time stamp value for the data representing when the data was accessed; and store the data in a cache memory based on the node weight and the first time stamp value. In another embodiment, a method may comprise setting a node weight for data associated with a data access command, storing a first access counter value for the data representing a number of times new data has been stored to the cache memory when the data was accessed, and removing the data from the cache memory or maintaining the data in the cache memory based on the node weight and the first access counter value.

Abstract translation: 公开了用于高速缓存数据值跟踪的系统和方法。 在一个实施例中，控制器可以被配置为选择数据; 为表示数据的缓存命中潜力的数据设置节点权重; 存储表示访问数据的数据的第一时间戳值; 并且基于节点权重和第一时间戳值将数据存储在高速缓冲存储器中。 在另一个实施例中，一种方法可以包括设置与数据访问命令相关联的数据的节点权重，当访问数据时，存储表示新数据已被存储到高速缓冲存储器的次数的数据的第一访问计数器值， 以及基于节点权重和第一访问计数器值从高速缓冲存储器中移除数据或将数据保持在高速缓冲存储器中。