Caching Characteristics of Internet and Intranet Web Proxy Traces

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Caching Characteristics of Internet and Intranet
Web Proxy Traces
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Potential web catching benefits

• Reduce response time by delivering documents from
  closer or less loaded server than the original.
• Save bandwidth cost between proxy and original
  server.

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Goals

• Study large intra net and INTERNET traces.
• Evaluate catching opportunities and problems.
• Examine cache size needs and document resistance
  time.

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Key cache matrics

• Hit ratio HR no of doc served from cache
• No of doc served
• Fractional bandwidth saving
• No of bytes served with the doc in the catche
• No of bytes served

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Internet object caching

• Internet object caching is a way to store
  requested Internet objects (i.e., data available
  via the HTTP, FTP, and gopher protocols) on a
  system closer to the requesting site than to the
  source. Web browsers can then use the local Squid
  cache as a proxy HTTP server, reducing access
  time as well as bandwidth consumption.

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