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Tracking modified pages on a computer system

  • US 20060117300A1
  • Filed: 11/23/2004
  • Published: 06/01/2006
  • Est. Priority Date: 11/23/2004
  • Status: Active Grant
First Claim
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1. A method for tracking modified pages in a system comprising a first computer system and a second computer system, the method comprising the steps of:

  • copying, at a first point in time, a memory from the first computer system to the second computer system;

    tracking, after the first point in time until a second point in time, a process that executes on the first computer system between the first point in time and the second point in time;

    determining, from the process, after the second point in time, if a page of the memory was modified by the process; and

    copying the page, if modified, from the first computer system to the second computer system.

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