Reducing disk IO by full-cache write-merging
US7194589B2 · kind B2 · utility
4Cited by
3References
41Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 22, 2003 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Aug 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic and computerized system that coalesces write operations using a buffer cache which stores data waiting to be written back to a disk of the electronic and computerized system is described. Dirty data blocks with consecutive data block addresses in the buffer cache are coalesced and written to the disk together. The disk head movements for performing the disk IOs are significantly reduced, thereby allowing the electronic and computerized system to maintain a high IO throughput and high peak performance with fewer disks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.