May 26, 2018

Powerful feature-rich Perl source code profiler

DevelNYTProf is a powerful feature-rich perl source code profiler.

  • Performs per-line statement profiling for fine detail
  • Performs per-subroutine statement profiling for overview
  • Performs per-block statement profiling the first profiler to do so
  • Accounts correctly for time spent after calls return
  • Performs inclusive and exclusive timing of subroutines
  • Subroutine times are per calling location a powerful feature
  • Can profile compile-time activity, just run-time, or just END time
  • Uses novel techniques for efficient profiling
  • Sub-microsecond 100ns resolution on systems with clock_gettime
  • Very fast - the fastest statement and subroutine profilers for perl
  • Handles applications that fork, with no performance cost
  • Immune from noise caused by profiling overheads and I/O
  • Program being profiled can stop/start the profiler
  • Generates richly annotated and cross-linked html reports
  • Trivial to use with mod_perl - add one line to httpd.conf
  • Includes an extensive test suite
  • Tested on very large codebases

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