diff --git a/modules/metrics/src/main/java/org/springside/modules/metrics/CounterMetric.java b/modules/metrics/src/main/java/org/springside/modules/metrics/CounterMetric.java
index 55c4401c..bac38438 100644
--- a/modules/metrics/src/main/java/org/springside/modules/metrics/CounterMetric.java
+++ b/modules/metrics/src/main/java/org/springside/modules/metrics/CounterMetric.java
@@ -7,9 +7,9 @@ package org.springside.modules.metrics;
 
 public class CounterMetric {
 	public long totalCount;
-	public double meanRate;
+	public long meanRate;
 	public long lastCount;
-	public double lastRate;
+	public long lastRate;
 
 	@Override
 	public String toString() {
diff --git a/modules/metrics/src/main/java/org/springside/modules/metrics/reporter/ConsoleReporter.java b/modules/metrics/src/main/java/org/springside/modules/metrics/reporter/ConsoleReporter.java
index 93756a79..75aa46f5 100644
--- a/modules/metrics/src/main/java/org/springside/modules/metrics/reporter/ConsoleReporter.java
+++ b/modules/metrics/src/main/java/org/springside/modules/metrics/reporter/ConsoleReporter.java
@@ -83,8 +83,8 @@ public class ConsoleReporter implements Reporter {
 	private void printCounter(CounterMetric counter) {
 		output.printf("        last count = %d%n", counter.lastCount);
 		output.printf("       total count = %d%n", counter.totalCount);
-		output.printf("         last rate = %2.2f/s%n", counter.lastRate);
-		output.printf("         mean rate = %2.2f/s%n", counter.meanRate);
+		output.printf("         last rate = %d%n", counter.lastRate);
+		output.printf("         mean rate = %d%n", counter.meanRate);
 	}
 
 	private void printHistogram(HistogramMetric histogram) {
@@ -98,8 +98,8 @@ public class ConsoleReporter implements Reporter {
 
 	private void printTimer(TimerMetric timer) {
 		output.printf("             count = %d%n", timer.counterMetric.totalCount);
-		output.printf("         last rate = %2.2f/s%n", timer.counterMetric.lastRate);
-		output.printf("         mean rate = %2.2f/s%n", timer.counterMetric.meanRate);
+		output.printf("         last rate = %d%n", timer.counterMetric.lastRate);
+		output.printf("         mean rate = %d%n", timer.counterMetric.meanRate);
 		output.printf("               min = %d ms%n", timer.histogramMetric.min);
 		output.printf("               max = %d ms%n", timer.histogramMetric.max);
 		output.printf("              mean = %2.2f ms%n", timer.histogramMetric.mean);