Caching based on spatial distribution of accesses to data storage devices
US8812790B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Sep 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A controller is communicatively coupled with a storage medium and with a cache device and configured to interface with a processor or a memory of a computer system. The controller is further configured to receive a specified quantity of address references associated with a storage system; determine a spatial distribution of references to addresses of the storage system based at least in part on the received specified quantity of the address references, where to perform a determination of the spatial distribution, the controller is further configured to omit a random quantity of address references between previous determination of the spatial distribution and said determination of the spatial distribution; combine the determined spatial distribution with the previous determination of the spatial distribution into a spatial locality metric of the storage system; and output the spatial locality metric to use in caching data from the storage medium to the cache device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.