utils/google-benchmark/tools/compare_bench.py

   1 #!/usr/bin/env python
   2 """
   3 compare_bench.py - Compare two benchmarks or their results and report the
   4                    difference.
   5 """
   6 import sys
   7 import gbench
   8 from gbench import util, report
   9
  10 def main():
  11     # Parse the command line flags
  12     def usage():
  13         print('compare_bench.py <test1> <test2> [benchmark options]...')
  14         exit(1)
  15     if '--help' in sys.argv or len(sys.argv) < 3:
  16         usage()
  17     tests = sys.argv[1:3]
  18     bench_opts = sys.argv[3:]
  19     bench_opts = list(bench_opts)
  20     # Run the benchmarks and report the results
  21     json1 = gbench.util.run_or_load_benchmark(tests[0], bench_opts)
  22     json2 = gbench.util.run_or_load_benchmark(tests[1], bench_opts)
  23     output_lines = gbench.report.generate_difference_report(json1, json2)
  24     print 'Comparing %s to %s' % (tests[0], tests[1])
  25     for ln in output_lines:
  26         print(ln)
  27
  28
  29 if __name__ == '__main__':
  30     main()