Method for managing a data cache using virtual external storage addresses as arguments
US5088026A · kind A · utility
37Cited by
6References
6Claims
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Key dates
| Filing date | Feb 9, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Feb 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to manage the access of data or pages mapped into a very large virtual external address space through a cache without disturbing the logical view of the data and without having to assign physical or real backing store to said logical view. A data cache is used in which pages are indexed according to a logical address intermediate to their virtual address and their physical location in external storage. Pages common to two or more files are updated in place in the cache, while pages bound to only one file are shadow copied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.