Invention Grant
- Patent Title: Optimized caching agent with integrated directory cache
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Application No.: US15396174Application Date: 2016-12-30
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Publication No.: US10339060B2Publication Date: 2019-07-02
- Inventor: Bahaa Fahim , Ashok Jagannathan , Jeffrey D. Chamberlain , Samuel D. Strom
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Nicholson De Vos Webster & Elliott LLP
- Main IPC: G06F12/0817
- IPC: G06F12/0817 ; G06F12/0831

Abstract:
System, method, and processor for enabling early deallocation of tracker entries which track memory accesses are described herein. One embodiment of a method includes: maintaining an RSF corresponding to a first processing unit of a plurality of processing units to track cache lines, wherein a cache line is tracked by the RSF if the cache line is stored in both a memory and one or more other processing unit, the memory is coupled to and shared by the plurality of processing units; receiving a request to access a target cache line from a processing core of the first processing unit; allocating a tracker entry corresponding to the request, the tracker entry used to track a status of the request; performing a lookup in the RSF for the target cache line; and deallocating the tracker entry responsive to a detection that the target cache line is not tracked the RSF.
Public/Granted literature
- US20180189180A1 OPTIMIZED CACHING AGENT WITH INTEGRATED DIRECTORY CACHE Public/Granted day:2018-07-05
Information query
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