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System and method for dynamically analyzing and improving the performance of a network

  • US 5,742,819 A
  • Filed: 11/27/1996
  • Issued: 04/21/1998
  • Est. Priority Date: 06/04/1993
  • Status: Expired due to Term
First Claim
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1. A method of operating an open file cache that maintains files open after their closing has been requested, each file being so maintained for an open file close delay Wd after its closing has been requested, the method comprising the steps of:

  • periodically determining (1) a number Fo of open files, (2) a number Fi of idle files, (3) a number Fa of active files, and (4) a number Fia of files that have changed from idle to active during the most recent period; and

    for the following cases of the set of numbers {Fo, Fi, Fa, Fia }, performing the corresponding steps as follows;

    {0, 0, 0, 0};

    setting the value of Wd to be a default value Wd0 ;

    {>

    0, 0, >

    0, 0};

    setting the value of Wd to be Wd 0 ;

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