chore: import upstream snapshot with attribution

compare_benchmarks.py

@@ -0,0 +1,28 @@
+import sys
+import json
+
+print(f'Will compare benchmark results {sys.argv[2]} against reference {sys.argv[1]}')
+
+referenceBenchmark = json.load(open(sys.argv[1]))
+newBenchmark = json.load(open(sys.argv[2]))
+
+failed = False
+for language in ["CSharp", "Python"]:
+
+	for key, value in referenceBenchmark[language].items():
+		if key not in newBenchmark[language]:
+			failed = True
+			print(f'Performance benchmark {key} language {language} was not found in new results')
+			continue
+		newResult = newBenchmark[language][key]
+
+		# allow 5% noise
+		expectedValue = value["average-dps"] * 0.90
+		if expectedValue > newResult["average-dps"]:
+			failed = True
+			print(f'Performance benchmark Failed for algorithm {key} language {language}. Was {str(newResult["average-dps"])} expected as low as {str(expectedValue)}')
+		else:
+			print(f'Performance benchmark Passed for algorithm {key} language {language}. Was {str(newResult["average-dps"])} expected as low as {str(expectedValue)}')
+
+if failed:
+	exit(1)