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System, method, and program for balancing cache space requirements with retrieval access time for large documents on the internet

  • US 6,658,462 B1
  • Filed: 08/26/1999
  • Issued: 12/02/2003
  • Est. Priority Date: 08/26/1999
  • Status: Expired due to Fees
First Claim
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1. A method for retrieving a file across a network having at least one server, at least one client, and at least one caching agent, the method comprising:

  • receiving, by the caching agent, from the client, a get request for the file of an origin server;

    determining a number of bytes (n) of the file that would make up at least a first displayed page of the file wherein the n bytes is a first portion of the file, and wherein the determined number of bytes (n) of the file that would make up the at least the first displayed page of the file is determined based upon a determined rendering area for at least one of i) the requesting client and ii) a plurality of potential requesting clients;

    determining if at least the first portion of the file is stored in a cache of the caching agent; and

    if the at least the first portion is stored in the cache;

    at a same time, i) transferring, by the caching agent, the at least first portion of the file to the client; and

    ii) requesting, by the caching agent, a remaining portion of the file; and

    as the requested remaining portion is received, transferring, by the caching agent, the remaining portion of the file to the client.

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