Scheduling of background scrub commands to reduce high workload memory request latency
US7882323B2 · kind B2 · utility
14Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus to scrub a memory during a scrub period, of a computer system. The computer system has a memory controller that receives read requests and write requests from a processor. The memory controller provides a different priority for scrub requests versus read requests during a period of relatively light memory workload versus a period of relatively heavy workload. The memory controller provides a relatively higher priority for scrub requests near an end of a scrub period if scrub progress is behind an expected scrub progress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.