Optimized caching agent with integrated directory cache
US10339060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jan 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1041
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.