Peter L Dunlap

US Patent:

20170031823, Feb 2, 2017

Filed:

Jul 31, 2015

Appl. No.:

14/815636

Inventors:

- Redwood City CA, US
Peter Dunlap - Boulder CO, US
Roch Bourbonnais - Cornec, FR
Blaise Sanouillet - Rickmansworth, GB

Assignee:

Oracle International Corporation - Redwood City CA

International Classification:

G06F 12/08

Abstract:

Implementations described and claimed herein provide systems and method for prefetching data. In one implementation, whether a read request for a first data block is part of a sequential access stream is determined. A first trigger for a subsequent data block in the sequential access stream is recorded. A first set of data blocks is prefetched. The first set of data blocks is defined by a first prefetch window associated with the first trigger. A second trigger is recorded for a second subsequent data block in the sequential access stream. A second set of data blocks is prefetched. The second set of data blocks is defined by a second prefetch window associated with the first trigger. A size of the prefetch windows may be dynamically adjusted based on resource contention with the prefetching.