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Empress Shared Memory

 

Empress' Shared Memory Utility lets users enhance the performance of the Empress Database  by using Shared Memory, an operating system feature that allows several processes to share a specified section of main memory. By using Shared Memory to reduce file I/O, database performance can be improved.

  • By placing Lock Information and Locks in Shared Memory rather than in files, multiple database processes can access Lock Information and Locks with improved performance.
  • Global Buffers allow data from " one or more" files to be kept in Shared Memory for access by one or more processes. This enhances data access to those files.
  • Mapped Files allow data from " one or more" files to be kept in Shared Memory and do so in a manner different from Global Buffers. Again, this will enhance data access to those particular files

                       
                             
                         

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