Invention Grant
- Patent Title: Modifying data prefetching operation based on a past prefetching attempt
- Patent Title (中): 根据过去的预取尝试修改数据预取操作
-
Application No.: US13300587Application Date: 2011-11-20
-
Publication No.: US08954680B2Publication Date: 2015-02-10
- Inventor: Nitzan Peleg
- Applicant: Nitzan Peleg
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Ziv Glazberg
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/08

Abstract:
A method, apparatus and product for data prefetching. The method comprising: prefetching data associated with a load instruction of a computer program, wherein the prefetching is performed in anticipation to performing the load instruction, whereby the data is retained in the cache; detecting whether the prefetched data of the prefetching is invalidated after the prefetching commenced and prior to performing the load instruction; and adaptively determining whether to modify the prefetching data operation associated with the load instruction in response to the detection.
Public/Granted literature
- US20130132680A1 ADAPTIVE DATA PREFETCH Public/Granted day:2013-05-23
Information query