Method and means for managing linear mapped address spaces storing compressed data at the storage subsystem control unit or device level
US5666114A · kind A · utility
126Cited by
8References
10Claims
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Key dates
| Filing date | Nov 22, 1994 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Nov 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A constant size storage can be managed to preserve locality of referencing where it is partitioned into linear addressable storage space for compressed symbol strings and a linked list addressable space for overflowing portions of each compressed string, a token to the overflow being embedded in the linear address. The linear space is readjusted periodically in a direction so as to maintain the amount of available overflow within to lie within a certain range of current usage. Changes in compression statistics result in changing overflow usage requiring readjustment to minimize internal fragmentation etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.