diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtils.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtils.java
index 6f28be93780d9..ceff710bf272f 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtils.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtils.java
@@ -254,9 +254,9 @@ public double convertBy(double usageBytes) {
 
     @AllArgsConstructor
     public enum UsageUnit {
-        Kbps(8 / 1024);
+        Kbps(8d / 1024);
 
-        private final int convertUnit;
+        private final double convertUnit;
 
         public double convertBy(double usageBytes) {
             return this.convertUnit * usageBytes;
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtilsTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtilsTest.java
new file mode 100644
index 0000000000000..f1e14009bd201
--- /dev/null
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtilsTest.java
@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.pulsar.broker.loadbalance;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+
+public class LinuxInfoUtilsTest {
+    @Test
+    public void testUsageUnit() {
+        Assert.assertTrue(LinuxInfoUtils.UsageUnit.Kbps.convertBy(100) > 0);
+    }
+}
\ No newline at end of file