profiler

noun4

1. •
   A person who creates a profile for something or someone, especially a psychological profile for an unknown criminal.
2. •
   A device that analyzes something and builds up a profile.
3. •
   A software program that measures the performance of different portions of another program in order to locate bottlenecks.

   • […] a complete and intuitive profiler that supports numerous types of profiling modes and profilable applications. — 2006
4. •
   A mechanical device that cuts complex, irregular shapes by tracing a pattern.