Case Study II:A 400K SLOC Industrial Controller Application

• Input files

  • �C� Source code with header files
  • Broken into 100K max SLOC chunks (early technology limitation)

• Clone Detector

  • 250 Mb RAM to run detection process
  • About 1 CPU hour to run 100K SLOC

• Conclusions � following slides

  • Clone detection within a subsystem is useful enough
  • Located 500 line near miss clone! (Team originally knew but forgot about it)
  • Located domain idioms
  • Clone ratios in subsystems vary

• Customer now using clone data to streamline system

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