Managing a cache memory
US6604171B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | May 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/312
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Managing a cache memory includes using a first cache memory, copying data from the first cache memory to a second cache memory, and, following copying, using the second cache memory along with the first cache memory. Prior to using the second cache memory, data may be copied to the second cache memory in response to the data being provided from a disk storage area to the first cache memory. Copying data may include background copying the data during times when the cache memories are not otherwise being used. Using the second cache memory along with the first cache memory may include providing data from a disk storage area to a first cache memory, providing data from the disk storage area to a second cache memory, where the first and second cache memories contain at least some data that is different, and writing a portion of the data to both of the cache memories in response to the portion of data being modified while stored in the cache memories.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.