Method for providing virtual memory to physical memory page mapping in a computer operating system that randomly samples state information
US6237073A · kind A · utility
47Cited by
53References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/885
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for guiding virtual-to-physical mapping policies in a computer system including a processor and a memory. State information is randomly sampled from selected memory references in a stream of memory references issued by the processor to the memory. Cache hit/miss status, translation-look-aside buffer hit/miss status, and effective virtual and physical memory addresses of the sampled memory references are recorded in a profile record. The recorded information is aggregated by virtual memory address, and a new virtual-to-physical mapping is choosen to reduce cache and translation-look-aside buffer miss rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.