WebTraff: a GUI for Web proxy cache workload modeling and analysis

Markatchev, Nayden; Williamson, Carey

doi:10.1109/mascot.2002.1167096

Cited by 29 publications

(23 citation statements)

References 17 publications

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“…We used WebTraff [4] to generate a list of 10000 requests 4 , for the request pattern we assumed a Zipf distribution with α = 1.0 and 0.3. We simulated 1000 videos each with a dimension of 352x288, a framerate of 30 and a constant bitrate of 912384 bits/sec.…”

Section: Discussionmentioning

confidence: 99%

QBIX-G: a transcoding multimedia proxy

2006

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Due to the increasing availability of audio/visual data on the Internet, proxy caching is gaining on importance as a performance factor. This increase is accompanied by a diversification in the end terminals, which calls for media gateways and filters.An adaptive proxy is presented which performs (1) caching, (2) filtering and (3) media gateway functionality in one. The proxy can perform media adaptation -using transcodingon its own. A cost model is presented which incorporates user requirements, terminal capabilities and video variations in one formula. Based on this model, the proxy acts as a general broker of different user requirements and of different video variations. This is a first step towards What You Need is What You Get (WYNIWYG) video services, which deliver videos to users in exactly that quality what they need and what they want to pay for. The MPEG-7 and MPEG-21 standards enables this in an interoperable way. A detailed evaluation based on a series of measurements is provided.

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Section: Discussionmentioning

confidence: 99%

QBIX-G: a transcoding multimedia proxy

2006

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“…Only LRU web caching policy has been considered in this comparison which is considered as a limitation of the proposed framework. Markatchev and Williamson (2002) a synthetic workload generator called ProWGen has been presented for simulation evaluation of web proxy caches. ProWGen tool considers three characteristics of web workload that are document popularity distribution, document temporal locality and the correlation between the size and popularity of the document.…”

Section: Related Workmentioning

confidence: 99%

“…Thus, Microsoft tools are used to build WWPCS that make it more compatible since windows operating systems are Microsoft productions. Furthermore, in (Markatchev and Williamson, 2002) it has been recommended developing a caching simulation tool for windows operating systems.…”

Section: Introductionmentioning

confidence: 99%

Windows Web Proxy Caching Simulation: A Tool for Simulating Web Proxy Caching Under Windows Operating Systems

Yasin¹

2014

Journal of Computer Science

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Web caching plays a key role in improving the performance of the web by reducing the latency of delivering web objects to the users. On the other hand, a simulation tool plays a key role in studying the behavior of any network such as studying the effects of web caching on the performance of the network. The aim of this work is to present a tool for simulating a web proxy caching for windows operating systems since there is no existing well-compatible simulation tool for windows operating systems that can simulate Hit Ratio (HR) and Byte Hit Ratio (BHR) for traditional caching policies. The proposed simulation tool is called Windows Web Proxy Caching Simulation (WWPCS). The results show the performance of traditional web caching policies for different cache's sizes. Moreover, in order to show the efficiency of WWPCS, the results of running WWPCS are compared to the results of running a Unix-based tool.

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“…We modified the httperf tool to collect information about the response time of each HTTP request issued in the request stream. To analytically synthesize our Web workload models, we also used WebTraff [39] . This tool is able to capture the salient characteristics of Web workloads, such as Zipf-like document popularity, heavy-tailed file size distribution and temporal locality.…”

Section: Workload Modelsmentioning

confidence: 99%

A Novel Intermediary Framework for Dynamic Edge Service Composition

Canali

Colajanni

Malandrino

et al. 2012

J. Comput. Sci. Technol.

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Multimedia content, user mobility and heterogeneous client devices require novel systems that are able to support ubiquitous access to the Web resources. In this scenario, solutions that combine flexibility, efficiency and scalability in offering edge services for ubiquitous access are needed. We propose an original intermediary framework, namely Scalable Intermediary Software Infrastructure (SISI), which is able to dynamically compose edge services on the basis of user preferences and device characteristics. The SISI framework exploits a per-user profiling mechanism, where each user can initially set his/her personal preferences through a simple Web interface, and the system is then able to compose at run-time the necessary components. The basic framework can be enriched through new edge services that can be easily implemented through a programming model based on APIs and internal functions. Our experiments demonstrate that flexibility and edge service composition do not affect the system performance. We show that this framework is able to chain multiple edge services and to guarantee stable performance.

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WebTraff: a GUI for Web proxy cache workload modeling and analysis

Cited by 29 publications

References 17 publications

QBIX-G: a transcoding multimedia proxy

QBIX-G: a transcoding multimedia proxy

Windows Web Proxy Caching Simulation: A Tool for Simulating Web Proxy Caching Under Windows Operating Systems

A Novel Intermediary Framework for Dynamic Edge Service Composition

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