Journal ArticleDOI
A case for delay-conscious caching of Web documents
Peter Scheuermann,Junho Shim,Radek Vingralek +2 more
- Vol. 29, pp 997-1005
TLDR
This paper presents a new, delay-conscious cache replacement algorithm LNC-R-W3 which maximizes a performance metric called delay-savings-ratio and compares it with other existing cache replacement algorithms, namely LRU and LRU-MIN.Abstract:
Caching at proxy servers plays an important role in reducing the latency of the user response, the network delays and the load on Web servers. The cache performance depends critically on the design of the cache replacement algorithm. Unfortunately, most cache replacement algorithms ignore the Web's scale. In this paper we argue for the design of delay-conscious cache replacement algorithms which explicitly consider the Web's scale by preferentially caching documents which require a long time to fetch to the cache. We present a new, delay-conscious cache replacement algorithm LNC-R-W3 which maximizes a performance metric called delay-savings-ratio. Subsequently, we test the performance of LNC-R-W3 experimentally and compare it with the performance of other existing cache replacement algorithms, namely LRU and LRU-MIN.read more
Citations
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Journal ArticleDOI
Analysis of a Least Recently Used Cache Management Policy for Web Browsers
Vijay Mookerjee,Yong Tan +1 more
TL;DR: The comparison suggests that finding a good caching policy that is conscious of document size and delay may be difficult, and presents an approximate, easy-to-compute method to evaluate performance.
Journal ArticleDOI
Performance study of a collaborative method for hierarchical caching in proxy servers
Philip S. Yu,Edward A. MacNair +1 more
TL;DR: In this paper, the authors study the caching problem for Web documents in a hierarchy of collaborating proxy servers and propose a collaborative approach to reduce duplicate caching between a proxy and its parent or higher level proxies in the hierarchy when making a caching decision.
Journal ArticleDOI
Optimal methods for coordinated enroute web caching for tree networks
TL;DR: This article presents dynamic programming-based solutions to coordinated enroute Web caching for autonomous systems as a natural extension of the solution for tree networks and derives efficient algorithms that produce these solutions.
Journal Article
Performance study of a collaborative method for hierarchical caching in proxy servers
Philip S. Yu,Edward A. MacNair +1 more
TL;DR: This work studies the caching problem for Web documents in a hierarchy of collaborating proxy servers to reduce duplicate caching between a proxy and its parent or higher level proxies in the hierarchy when making a caching decision.
Proceedings ArticleDOI
Proxy cache coherency and replacement-towards a more complete picture
B. Krishnamurthy,Craig E. Wills +1 more
TL;DR: The use of access frequency in cache replacement, along with temporal locality and size information, results in a simple and better performing policy than found in previously published work.
References
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Proceedings ArticleDOI
The LRU-K page replacement algorithm for database disk buffering
TL;DR: The LRU-K algorithm surpasses conventional buffering algorithms in discriminating between frequently and infrequently referenced pages, and adapts in real time to changing patterns of access.
ReportDOI
A hierarchical internet object cache
TL;DR: The design and performance of a hierarchical proxy-cache designed to make Internet information systems scale better are discussed, and performance measurements indicate that hierarchy does not measurably increase access latency.
Book
Operating Systems Theory
TL;DR: As one of the part of book categories, operating systems theory always becomes the most wanted book.
Characteristics of WWW Client-based Traces
TL;DR: This paper presents a descriptive statistical summary of the traces of actual executions of NCSA Mosaic, and shows that many characteristics of WWW use can be modelled using power-law distributions, including the distribution of document sizes, the popularity of documents as a function of size, and the Distribution of user requests for documents.
Caching Proxies: Limitations and Potentials
TL;DR: This work assesses the potential of proxy servers to cache documents retrieved with the HTTP protocol, and finds that a proxy server really functions as a second level cache, and its hit rate may tend to decline with time after initial loading given a more or less constant set of users.