Preventing cache floods from sequential streams
US6823428B2 · kind B2 · utility
19Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | May 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method that avoids cache flooding when handling sequential I/O request streams in storage subsystem caches. Both on-demand and prefetched data are addressed. A mechanism is provided that makes the blocks read from the disk array, that are part of a sequential I/O request stream, minimize the evictions of potentially useful data blocks from the cache, thus avoiding the flooding of the cache by stale data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.