Branch confidence throttle
US11507380B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2018 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3851
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing system includes a processor with a branch predictor including one or more branch target buffer tables. The processor also includes a branch prediction pipeline including a throttle unit and an uncertainty accumulator. The processor assigns an uncertainty value for each of a plurality of branch predictions generated by the branch predictor and adds the uncertainty value for each of the plurality of branch predictions to an accumulated uncertainty counter associated with the uncertainty accumulator. The throttle unit of the branch prediction pipeline throttles operations of the branch prediction pipeline based on the accumulated uncertainty counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.