Hot cache line fairness arbitration in distributed modular SMP system
US10489294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention are directed to hot cache line arbitration. An example of a computer-implemented method for hot cache line arbitration includes receiving a request for exclusive access to a cache line from a requestor of a drawer in a processing system. The method further includes bringing the cache line to a local cache of the drawer. The method further includes invalidating copies of the cache line in the processing system. The method further includes loading a remote fetch address register (RFAR) controller on other drawers in the processing system, wherein the RFAR comprises a local pending flag and a remote pending flag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.