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RPP: Reference Pattern Based Kernel Prefetching Controller

Hyo J. LEE, In Hwan DOH, Eunsam KIM, Sam H. NOH

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Summary :

Conventional kernel prefetching schemes have focused on taking advantage of sequential access patterns that are easy to detect. However, it is observed that, on random and even sequential references, they may cause performance degradation due to inaccurate pattern prediction and overshooting. To address these problems, we propose a novel approach to work with existing kernel prefetching schemes, called Reference Pattern based kernel Prefetching (RPP). The RPP can reduce negative effects of existing schemes by identifying one more reference pattern, i.e., looping, in addition to random and sequential patterns and delaying starting prefetching until patterns are confirmed to be sequential or looping.

Publication
IEICE TRANSACTIONS on Information Vol.E92-D No.12 pp.2512-2515
Publication Date
2009/12/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E92.D.2512
Type of Manuscript
LETTER
Category
System Programs

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