Import BSDDB 4.7.25 (as of svn r89086)

test_micro/report.awk

@@ -0,0 +1,40 @@
+# $Id: report.awk,v 1.3 2008/01/02 15:54:03 bostic Exp $
+
+/^[^#]/ {
+	total[$1] += $2
+	sum[$1] += $2 * $2
+	++count[$1];
+}
+END {
+	# Compute the average, find the maximum.
+	for (i in total) {
+		avg[i] = total[i] / count[i];
+		if (max < avg[i])
+			max = avg[i]
+	}
+
+	for (i in total) {
+		# Calculate variance by raw score method.
+		var = (sum[i] - ((total[i] * total[i]) / count[i])) / count[i];
+
+		# The standard deviation is the square root of the variance.
+		stdv = sqrt(var);
+
+		# Display the release value, the average score, and run count.
+		printf("%s:%.2f:%d:", i, avg[i],  count[i]);
+
+		# If this run wasn't the fastest, display the percent by which
+		# this run was slower.
+		if (max != avg[i])
+			printf("%.0f%%", ((max - avg[i]) / max) * 100);
+
+		printf(":");
+
+		# If there was more than a single run, display the relative
+		# standard deviation.
+		if (count[i] >  1)
+			printf("%.0f%%", stdv * 100 / avg[i]);
+
+		printf("\n");
+	}
+}