added BucketTimingsReader

conf/logback.groovy

@@ -27,3 +27,4 @@ logger "teetime.variant.methodcallWithPorts.stage", INFO
 logger "teetime.variant.methodcallWithPorts.framework.core.pipe", INFO
 
 logger "util.TimingsReader", TRACE, ["FILE"]
+logger "util.BucketTimingsReader", TRACE, ["FILE"]
\ No newline at end of file

src/main/java/util/BucketTimingsReader.java

+package util;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Charsets;
+import com.google.common.io.CharSource;
+import com.google.common.io.Files;
+
+public class BucketTimingsReader {
+
+	private final static Logger LOGGER = LoggerFactory.getLogger(BucketTimingsReader.class);
+
+	public static void main(final String[] args) throws IOException {
+		String fileName = args[0];
+
+		Long[] currentTimings = new Long[10000];
+		int processedLines = 0;
+		List<Long> buckets = new LinkedList<Long>();
+
+		LOGGER.trace("Reading " + fileName);
+		CharSource charSource = Files.asCharSource(new File(fileName), Charsets.UTF_8);
+		BufferedReader bufferedStream = charSource.openBufferedStream();
+		String line;
+		while (null != (line = bufferedStream.readLine())) {
+			String[] strings = line.split(";");
+			Long timing = new Long(strings[1]);
+			currentTimings[processedLines] = timing;
+			processedLines++;
+			if (currentTimings.length == processedLines) {
+				Long aggregatedTimings = StatisticsUtil.calculateAverage(Arrays.asList(currentTimings));
+				buckets.add(aggregatedTimings);
+				processedLines = 0;
+			}
+		}
+
+		LOGGER.trace("#buckets: " + buckets.size());
+
+		List<Long> durationsInNs = buckets.subList(buckets.size() / 2, buckets.size());
+
+		LOGGER.trace("Calculating quantiles...");
+		Map<Double, Long> quintiles = StatisticsUtil.calculateQuintiles(durationsInNs);
+		LOGGER.info(StatisticsUtil.getQuantilesString(quintiles));
+
+		long confidenceWidth = StatisticsUtil.calculateConfidenceWidth(durationsInNs);
+		LOGGER.info("Confidence width: " + confidenceWidth);
+	}
+}

src/test/data/load-logs/timings-results.txt

+0.0 % : 3370 ns
+25.0 % : 3979 ns
+50.0 % : 4425 ns
+75.0 % : 4900 ns
+100.0 % : 15588 ns
+
+Confidence width: 14

JCTools @ 88e1e25f

-Subproject commit 75998aa20b7ec897ec321c1f94192de888f2dc6e
+Subproject commit 88e1e25f9519b250258c7e5ada30935975ab2d10