Coherence protocol with dynamic privatization
US8103834B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | May 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/502
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a system that maintains coherence between cache lines in a computer system by using dynamic privatization. During operation, the system starts by receiving a request for a read-only copy of a cache line from a processor. The system then determines if the processor has privately requested the cache line a predetermined number of times. If so, the system provides a copy of the cache line to the processor in an exclusive state. Otherwise, the system provides a copy of the cache line to the processor in a shared state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.