Method and apparatus of prefetching streams of varying prefetch depth
Abstract
Method and apparatus of prefetching streams of varying prefetch depth dynamically changes the depth of prefetching so that the number of multiple streams as well as the hit rate of a single stream are optimized. The method and apparatus in one aspect monitor a plurality of load requests from a processing unit for data in a prefetch buffer, determine an access pattern associated with the plurality of load requests and adjust a prefetch depth according to the access pattern.
- Inventors:
-
- Mount Kisco, NY
- Yorktown Heights, NY
- Chappaqua, NY
- Mahopac, NY
- Seebruck-Seeon, DE
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1034622
- Patent Number(s):
- 8103832
- Application Number:
- 11/768,697
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
- DOE Contract Number:
- B554331
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007 Jun 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING
Citation Formats
Gara, Alan, Ohmacht, Martin, Salapura, Valentina, Sugavanam, Krishnan, and Hoenicke, Dirk. Method and apparatus of prefetching streams of varying prefetch depth. United States: N. p., 2012.
Web.
Gara, Alan, Ohmacht, Martin, Salapura, Valentina, Sugavanam, Krishnan, & Hoenicke, Dirk. Method and apparatus of prefetching streams of varying prefetch depth. United States.
Gara, Alan, Ohmacht, Martin, Salapura, Valentina, Sugavanam, Krishnan, and Hoenicke, Dirk. Tue .
"Method and apparatus of prefetching streams of varying prefetch depth". United States. https://www.osti.gov/servlets/purl/1034622.
@article{osti_1034622,
title = {Method and apparatus of prefetching streams of varying prefetch depth},
author = {Gara, Alan and Ohmacht, Martin and Salapura, Valentina and Sugavanam, Krishnan and Hoenicke, Dirk},
abstractNote = {Method and apparatus of prefetching streams of varying prefetch depth dynamically changes the depth of prefetching so that the number of multiple streams as well as the hit rate of a single stream are optimized. The method and apparatus in one aspect monitor a plurality of load requests from a processing unit for data in a prefetch buffer, determine an access pattern associated with the plurality of load requests and adjust a prefetch depth according to the access pattern.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2012},
month = {Tue Jan 24 00:00:00 EST 2012}
}
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