Method and system for efficiently directing interrupts
US7117285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2003 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Jul 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for efficiently directing interrupts is disclosed. In a computer system having multiple processors, a computer implemented method, upon detecting an interrupt directed to one of the processors, determines a policy for efficiently handling the interrupt. Upon invoking the policy, the interrupt is redirected according thereto to a second processor for handling. The policies include an I/O affinity policy, a local memory policy, and a reduced I/O intension policy. In a multiple processor environment, a computer based system efficiently handles an interrupt directed to one of the processors. The system includes an interrupt dispatching module for redirecting the interrupt from that processor to another processor, where the interrupt is handled. The system also includes an interrupt redirection policy module associated with the interrupt dispatching module. The policy module provides a policy for controlling interrupt redirection, which promotes efficient operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.