Transaction stall technique to prevent livelock in multiple-processor systems
US6078981A · kind A · utility
22Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1997 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A livelock preventative measure is provided for agents in a multi-processor computing system. Livelock may occur when multiple agents each trade ownership of data in an attempt to modify it. When livelock occurs, a first agent posts a bus transaction for a data and, if a second agent posts a bus transaction for the same data, the first agent may stall the bus transaction of the second agent until the first agent has completed its operation on the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.