Invention Grant
US07673102B2 Method and system for maximum residency replacement of cache memory 有权
用于高速缓存存储器最大驻留替换的方法和系统

  • Patent Title: Method and system for maximum residency replacement of cache memory
  • Patent Title (中): 用于高速缓存存储器最大驻留替换的方法和系统
  • Application No.: US11437501
    Application Date: 2006-05-17
  • Publication No.: US07673102B2
    Publication Date: 2010-03-02
  • Inventor: Muhammad Ahmed
  • Applicant: Muhammad Ahmed
  • Applicant Address: US CA San Diego
  • Assignee: QUALCOMM Incorporated
  • Current Assignee: QUALCOMM Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent Nicholas J. Pauley; Sam Talpalatsky; Peter M. Kamarchik
  • Main IPC: G06F12/00
  • IPC: G06F12/00
Method and system for maximum residency replacement of cache memory
Abstract:
Techniques for use in CDMA-based products and services, including replacing cache memory allocation so as to maximize residency of a plurality of set ways following a tag-miss allocation. Herein, steps forming a first-in, first-out (FIFO) replacement listing of victim ways for the cache memory, wherein the depth of the FIFO replacement listing approximately equals the number of ways in the cache set. The method and system place a victim way on the FIFO replacement listing only in the event that a tag-miss results in a tag-miss allocation, the victim way is placed at the tail of the FIFO replacement listing after any previously selected victim way. Use of a victim way on the FIFO replacement listing is prevented in the event of an incomplete prior allocation of the victim way by, for example, stalling a reuse request until such initial allocation of the victim way completes or replaying a reuse request until such initial allocation of the victim way completes.
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