ODBMS tests

  • Results

    • Application is platform independent
    • Database is platform independent
    • No performance loss for remote client
    • Fastest access: objects are “indexed”
    • Slowest: using predicates

    Database 1

    Database 2

    Match using indexes,
    predicates or cuts

  • Developed simple scaling application: matching 1000s of sky objects at different wavelengths
  • Runs entirely in cache (can neglect disk I/O performance), applies matching algorithm between pairs of objects in different databases.
  • Looked at usability, efficiency and scalability for
    • number of objects
    • location of objects
    • object selection mechanism
    • database host platform

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