Check out the new USENIX Web site.

USENIX Home . About USENIX . Events . membership . Publications . Students
USENIX 2005 Annual Technical Conference, General Track — Abstract

Pp. 371–374 of the Proceedings

AMP: Program Context Specific Buffer Caching

Feng Zhou, Rob von Behren, and Eric Brewer, University of California, Berkeley


We present Adaptive Multi-Policy disk caching (AMP), which uses multiple caching policies within one application, and adapts both which policies to use and their relative fraction of the cache, based on program-context specific information. AMP differentiate disk requests based on the program contexts, or code locations, that issue them. Compared to recent work, AMP is unique in that it employs a new robust scheme for detecting looping patterns in access streams, as well as a low-overhead randomized way of managing many cache partitions. We show that AMP outperforms non-detection-based caching algorithms on a variety of workloads by up to 50% in miss rate reduction. Compared to other detection-based schemes, we show that AMP detects access patterns more accurately for a series of synthesized workloads, and incurs up to 15% fewer misses for one application trace.
  • View the full text of this paper in HTML and PDF.
  • View the presentation slides (PDF)
  • View the AMP Project Web site
    Click here if you have forgotten your password Until April 2006, you will need your USENIX membership identification in order to access the full papers. The Proceedings are published as a collective work, © 2005 by the USENIX Association. All Rights Reserved. Rights to individual papers remain with the author or the author's employer. Permission is granted for the noncommercial reproduction of the complete work for educational or research purposes. USENIX acknowledges all trademarks within this paper.

  • If you need the latest Adobe Acrobat Reader, you can download it from Adobe's site.
To become a USENIX Member, please see our Membership Information.

?Need help? Use our Contacts page.

Last changed: 15 April 2005 aw
Technical Program
USENIX '05 Home