发明申请
US20090210629A1 METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SELECTIVELY PURGING CACHE ENTRIES
审中-公开
方法，系统和计算机程序产品，用于选择高速缓存进入
- 专利标题： METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SELECTIVELY PURGING CACHE ENTRIES
- 专利标题（中）： 方法，系统和计算机程序产品，用于选择高速缓存进入
-
申请号： US12032058申请日： 2008-02-15
-
公开(公告)号： US20090210629A1公开(公告)日： 2009-08-20
- 发明人: Michael A. Blake , Christine C. Jones , Pak-kin Mak , Arthur J. O'Neill, JR.
- 申请人： Michael A. Blake , Christine C. Jones , Pak-kin Mak , Arthur J. O'Neill, JR.
- 申请人地址： US NY Armonk
- 专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址： US NY Armonk
- 主分类号： G06F12/08
- IPC分类号： G06F12/08
摘要：
A method, system and computer program product for selectively purging entries in a cache of a computer system. The method includes determining a starting storage address and a length of the storage address range to be purged, determining preset values for a congruence class and a compartment of a cache directory, accessing the cache directory based on the preset value of the congruence class, and selecting an entry in the cache directory based on the preset value of the compartment, determining validity of the entry accessed by examining an ownership tag of the entry, comparing a line address of the entry with the starting storage address and a sum of the starting storage address and the length of the storage address range, and selectively purging the entry based on the comparison result.
信息查询
