WWW Cache Modelling Toolbox
نویسندگان
چکیده
This paper develops and implements a World Wide Web cache infrastructure model which is to be used for analysis of features that are otherwise difficult to get from existing log data or for evaluation of nonexisting cache scenarios. A prominent feature of our model that differentiates it from other similar models is its dynamical aspect, which allows for the investigation of temporal features. Using the model we verify and quantify an observation made from real log data that the popularity of Web pages diversifies the higher we go in the cache hierarchy. We then use the model to predict the cache population dynamics in a hypothetical scenario of sufficiently large caches.
منابع مشابه
The WWW Based Data Mining Toolbox Architecture
This paper presents the Data Mining (DM) toolbox architecture based on cutting edge World Wide Web (WWW) technologies. The DM toolbox is used to discover new and useful knowledge by integrating results generated by multiple DM tools. The proposed architecture allows submission of data to the DM toolbox and generation of results that combine knowledge generated by several different DM tools. The...
متن کاملNetwork performance implications of multi- dimensional variability in data traffic
WWW traffic will dominate network traffic for the foreseeable future. Accurate predictions of network performance can only be achieved if network models reflect WWW traffic statistics. Through analysis of usage logs at a range of caches we confirm that WWW traffic is not a Poisson arrival process, and that it shows significant levels of self-similarity. We show for the first time that the self-...
متن کاملDuplicated Hash Routing: A Robust Algorithm for a Distributed WWW Cache System
Hash routing is an algorithm for a distributed WWW caching system that achieves a high hit rate by preventing overlaps of objects between caches. However, one of the drawbacks of hash routing is its lack of robustness against failure. Because WWW becomes a vital service on the Internet, the capabilities of fault tolerance of systems that provide the WWW service come to be important. In this pap...
متن کاملCS 533 Computer Networks Term Project: Prefetching on WWW – its past and future
This paper summarizes the various research efforts on prefetching schemes in WWW. We try to classify and rate the previous methods and results on this topic and point out the potential works. We will proceed from several perspectives: questions addressed in the past, methods that have been used, advantages and limitations, comparison of different results, open questions, new changes in Internet...
متن کاملImproving WWW Proxies Performance with Greedy-Dual- Size-Frequency Caching Policy
Web, HTTP, WWW proxies, caching policies, replacement algorithms, performance Web proxy caches are used to improve performance of the WWW. Since the majority of Web documents are static documents, caching them at WWW proxies reduces both network traffic and response time. One of the keys to better proxy cache performance is an efficient caching policy which keeps in the cache popular documents ...
متن کامل