Using sub-region I/O history to cache repeatedly accessed sub-regions in a non-volatile storage device
US10372613B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | May 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods and/or devices are used to enable using sub-region I/O history to cache repeatedly accessed sub-regions in a non-volatile storage device. In one aspect, the method includes (1) receiving a plurality of input/output (I/O) requests including read requests and write requests to be performed in a plurality of regions in a logical address space of a host, and (2) performing one or more operations for each region of the plurality of regions in the logical address space of the host, including, for each sub-region of a plurality of sub-regions of the region: (a) determining whether the sub-region is accessed more than a predetermined threshold number of times during a predetermined time period, and (b) if so, caching, from a storage medium of the storage device to a cache of the storage device, data from the sub-region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.