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-rw-r--r--3rdparty/benchmark/tools/compare_bench.py30
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diff --git a/3rdparty/benchmark/tools/compare_bench.py b/3rdparty/benchmark/tools/compare_bench.py
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+++ b/3rdparty/benchmark/tools/compare_bench.py
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+#!/usr/bin/env python
+"""
+compare_bench.py - Compare two benchmarks or their results and report the
+ difference.
+"""
+import sys
+import gbench
+from gbench import util, report
+
+def main():
+ # Parse the command line flags
+ def usage():
+ print('compare_bench.py <test1> <test2> [benchmark options]...')
+ exit(1)
+ if '--help' in sys.argv or len(sys.argv) < 3:
+ usage()
+ tests = sys.argv[1:3]
+ bench_opts = sys.argv[3:]
+ bench_opts = list(bench_opts)
+ # Run the benchmarks and report the results
+ json1 = gbench.util.run_or_load_benchmark(tests[0], bench_opts)
+ json2 = gbench.util.run_or_load_benchmark(tests[1], bench_opts)
+ output_lines = gbench.report.generate_difference_report(json1, json2)
+ print 'Comparing %s to %s' % (tests[0], tests[1])
+ for ln in output_lines:
+ print(ln)
+
+
+if __name__ == '__main__':
+ main()