Techniques for providing improved affinity scheduling in a multiprocessor computer system
US8051418B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Sep 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/5033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for controlling a thread on a computerized system having multiple processors involve accessing state information of a blocked thread, and maintaining the state information of the blocked thread at current values when the state information indicates that less than a predetermined amount of time has elapsed since the blocked thread ran on the computerized system. Such techniques further involve setting the state information of the blocked thread to identify affinity for a particular processor of the multiple processors when the state information indicates that at least the predetermined amount of time has elapsed since the blocked thread ran on the computerized system. Such operation enables the system to place a cold blocked thread which shares data with another thread on the same processor of that other thread so that, when the blocked thread awakens and runs, that thread is closer to the shared data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.