Invention Application
- Patent Title: Purging without write-back of cache lines containing spent data
- Patent Title (中): 清除不回写包含已用数据的缓存行
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Application No.: US10909057Application Date: 2004-07-30
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Publication No.: US20060026360A1Publication Date: 2006-02-02
- Inventor: Dale Morris , Robert Schreiber
- Applicant: Dale Morris , Robert Schreiber
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F13/28
Abstract:
The present invention provides a system with a cache that indicates which, if any, of its sections contain data having spent status. The invention also provides a method for identifying cache sections containing data having spent status and then purging without writing back to main memory a cache line having at least one section containing data having spent status. The invention further provides a program that specifies a cache-line section containing data that is to acquire “spent” status. “Spent” data, herein, is useless modified or unmodified data that was formerly at least potentially useful data when it was written to a cache. “Purging” encompasses both invalidating and overwriting.
Public/Granted literature
- US08214601B2 Purging without write-back of cache lines containing spent data Public/Granted day:2012-07-03
Information query
