Basic HTML version of Foils prepared July 6 99

Foil 10 Instrumentation

From A Methodology for Benchmarking Java Grande Applications ACM Java Grande Meeting -- June 12-13 99. by J.M. Bull(Presenter), L.A. smith, M.D. Westhead, D.S. Henty, R.A. Davey (EPCC)
The instrumentation class allows timers to be added to existing code.
Implemented as a hash table of timers:
  • global objects referred to by a string
  • accessed via class methods
  • no need to add or pass references
As well as a time, each timer also contains an operation count, for computing temporal performance.
Timers can be started, stopped, read, printed, etc.

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