diff --git a/codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttMessageType.java b/codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttMessageType.java
index 7f9c57b871..07c5b8a7f5 100644
--- a/codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttMessageType.java
+++ b/codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttMessageType.java
@@ -36,6 +36,22 @@ public enum MqttMessageType {
     DISCONNECT(14),
     AUTH(15);
 
+    private static final MqttMessageType[] VALUES;
+
+    static {
+        // this prevent values to be assigned with the wrong order
+        // and ensure valueOf to work fine
+        final MqttMessageType[] values = values();
+        VALUES = new MqttMessageType[values.length + 1];
+        for (MqttMessageType mqttMessageType : values) {
+            final int value = mqttMessageType.value;
+            if (VALUES[value] != null) {
+                throw new AssertionError("value already in use: " + value);
+            }
+            VALUES[value] = mqttMessageType;
+        }
+    }
+
     private final int value;
 
     MqttMessageType(int value) {
@@ -47,12 +63,10 @@ public enum MqttMessageType {
     }
 
     public static MqttMessageType valueOf(int type) {
-        for (MqttMessageType t : values()) {
-            if (t.value == type) {
-                return t;
-            }
+        if (type <= 0 || type >= VALUES.length) {
+            throw new IllegalArgumentException("unknown message type: " + type);
         }
-        throw new IllegalArgumentException("unknown message type: " + type);
+        return VALUES[type];
     }
 }
 
diff --git a/microbench/pom.xml b/microbench/pom.xml
index d8ec617053..35bed004b1 100644
--- a/microbench/pom.xml
+++ b/microbench/pom.xml
@@ -152,6 +152,11 @@
       <artifactId>netty-codec-redis</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>io.netty</groupId>
+      <artifactId>netty-codec-mqtt</artifactId>
+      <version>${project.version}</version>
+    </dependency>
     <dependency>
       <groupId>${project.groupId}</groupId>
       <artifactId>netty-transport-native-epoll</artifactId>
diff --git a/microbench/src/main/java/io/netty/handler/codec/mqtt/MqttMessageTypeValueOfBench.java b/microbench/src/main/java/io/netty/handler/codec/mqtt/MqttMessageTypeValueOfBench.java
new file mode 100644
index 0000000000..4dc0ef5949
--- /dev/null
+++ b/microbench/src/main/java/io/netty/handler/codec/mqtt/MqttMessageTypeValueOfBench.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2020 The Netty Project
+ *
+ * The Netty Project 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 io.netty.handler.codec.mqtt;
+
+import io.netty.microbench.util.AbstractMicrobenchmark;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Warmup(iterations = 5, time = 5)
+@Measurement(iterations = 5, time = 5)
+@OutputTimeUnit(TimeUnit.NANOSECONDS)
+public class MqttMessageTypeValueOfBench extends AbstractMicrobenchmark {
+
+    private static final int[] DATASET = new int[] {
+            9, 5, 2, 9, 8, 4, 3, 7, 7, 9, 6, 11, 10, 4, 10, 6, 12, 6, 14, 8, 2, 2, 5, 7, 13, 3, 10, 12, 6, 2, 8, 1, 6,
+            4, 10, 8, 13, 9, 9, 2, 7, 12, 2, 3, 12, 9, 3, 12,
+            11, 4, 10, 11, 9, 10, 5, 9, 4, 14, 6, 10, 13, 9, 12, 7, 5, 3, 1, 2, 7, 11, 1, 8, 4, 9, 5, 11, 14, 6, 3, 4,
+            3, 1, 12, 9, 6, 1, 10, 2, 9, 5, 10, 4, 5, 1, 8,
+            2, 11, 9, 7, 10, 14, 9, 12, 14, 6, 13, 6, 14, 6, 1, 3, 1, 10, 13, 13, 2, 2, 8, 7, 10, 9, 9, 4, 7, 13, 4, 10,
+            3, 14, 14, 4, 3, 6, 7, 13, 13, 2, 3, 13, 5, 2,
+            14, 11, 1, 5, 6, 14, 13, 12, 3, 9, 10, 1, 4, 1, 1, 13, 5, 8, 1, 8, 2, 7, 9, 14, 13, 2, 11, 10, 11, 5, 9, 13,
+            13, 12, 11, 6, 1, 7, 11, 1, 11, 7, 8, 1, 13,
+            12, 1, 5, 10, 2, 13, 4, 8, 2, 14, 8, 8, 9, 14, 12, 11, 1, 10, 6, 7, 2, 1, 12, 11, 8, 9, 10, 13, 2, 12, 3, 8,
+            1, 13, 11, 8, 6, 4, 5, 8, 5, 12, 10, 9, 4, 7,
+            2, 1, 11, 6, 7, 11, 5, 1, 5, 2, 7, 7, 14, 14, 3, 2, 1, 8, 5, 7, 4, 13, 13, 7, 8, 2, 14, 1, 12, 7, 8, 8, 3,
+            9, 8, 1, 11, 10, 13, 10, 2, 1, 12, 5, 3, 3, 12, 5,
+            7, 12, 13, 10, 14, 9, 2, 4, 12, 4, 10, 10, 2, 9, 2, 7, 5, 6, 2, 14, 10, 3, 4, 5, 8, 1, 14, 13, 1, 2, 5, 11,
+            8, 6, 8, 3, 8, 13, 12, 8, 2, 12, 6, 2, 5, 4, 13,
+            5, 11, 11, 5, 12, 9, 9, 9, 6, 4, 4, 11, 14, 12, 9, 3, 4, 12, 10, 10, 6, 3, 2, 12, 3, 2, 10, 8, 7, 10, 12,
+            13, 1, 2, 7, 13, 2, 13, 4, 13, 14, 10, 14, 7, 5,
+            11, 10, 9, 9, 1, 9, 10, 3, 9, 1, 13, 7, 9, 7, 1, 8, 14, 2, 6, 11, 2, 2, 11, 4, 10, 10, 9, 4, 4, 13, 7, 2, 1,
+            4, 14, 6, 11, 5, 2, 5, 9, 5, 8, 4, 5, 6, 2, 12, 2,
+            5, 2, 14, 3, 11, 5, 4, 14, 14, 2, 7, 7, 2, 3, 11, 2, 10, 9, 13, 3, 4, 2, 10, 1, 2, 10, 7, 7, 6, 8, 8, 12,
+            14, 8, 13, 1, 9, 5, 9, 1, 14, 2, 5, 5, 5, 3, 13, 11,
+            9, 6, 11, 1, 10, 13, 4, 7, 9, 6, 3, 4, 11, 8, 13, 3, 13, 12, 7, 7, 5, 9, 11, 3, 9, 6, 5, 6, 6, 11, 9, 2, 7,
+            1, 12, 7, 5, 8, 11, 4, 9, 10, 11, 12, 7, 8, 1, 2,
+            3, 14, 3, 9, 11, 9, 7, 4, 4, 4, 8, 4, 4, 2, 5, 8, 2, 11, 7, 13, 2, 14, 3, 6, 7, 14, 12, 6, 9, 11, 10, 9, 6,
+            10, 6, 14, 4, 1, 7, 12, 4, 13, 10, 2, 2, 3, 3, 14,
+            14, 2, 9, 12, 3, 9, 7, 6, 12, 8, 9, 5, 11, 13, 14, 14, 4, 1, 11, 14, 5, 9, 7, 14, 7, 13, 7, 14, 3, 14, 2, 8,
+            2, 5, 10, 12, 14, 9, 11, 3, 14, 8, 12, 12, 5, 2,
+            6, 2, 1, 14, 12, 8, 14, 1, 11, 14, 8, 9, 9, 1, 12, 13, 7, 8, 10, 5, 8, 5, 14, 13, 14, 3, 14, 2, 9, 12, 3,
+            10, 3, 2, 4, 3, 5, 5, 10, 10, 13, 10, 7, 6, 4, 2, 10,
+            8, 14, 2, 7, 1, 2, 7, 13, 2, 3, 6, 14, 3, 8, 12, 3, 4, 12, 6, 3, 10, 6, 14, 9, 1, 6, 3, 14, 7, 1, 7, 2, 12,
+            9, 5, 9, 6, 13, 5, 11, 13, 11, 10, 1, 14, 9, 13, 8,
+            12, 14, 14, 8, 13, 2, 6, 14, 2, 2, 9, 12, 9, 7, 2, 11, 4, 6, 8, 10, 12, 10, 11, 2, 9, 9, 5, 4, 3, 4, 4, 10,
+            3, 1, 12, 13, 9, 8, 1, 9, 9, 4, 2, 7, 3, 4, 11, 11,
+            8, 10, 14, 5, 14, 1, 10, 10, 13, 5, 6, 13, 14, 5, 7, 11, 4, 13, 3, 14, 7, 2, 10, 13, 2, 4, 14, 5, 1, 12, 3,
+            13, 11, 2, 11, 14, 2, 5, 8, 13, 4, 13, 13, 3, 3,
+            3, 13, 6, 11, 5, 3, 2, 13, 9, 2, 10, 8, 3, 11, 4, 6, 12, 14, 6, 2, 14, 1, 2, 6, 8, 4, 12, 8, 11, 9, 1, 7, 1,
+            10, 4, 10, 9, 9, 3, 11, 5, 10, 8, 9, 4, 13, 4,
+            5, 7, 12, 14, 12, 6, 1, 2, 10, 9, 10, 12, 1, 2, 6, 9, 5, 13, 4, 6, 11, 7, 1, 3, 10, 2, 1, 13, 14, 3, 5, 5,
+            5, 7, 14, 9, 9, 3, 12, 1, 1, 1, 3, 12, 6, 9, 7, 8, 1,
+            8, 2, 8, 13, 1, 11, 11, 1, 4, 10, 4, 3, 10, 3, 2, 2, 8, 2, 4, 13, 14, 4, 12, 14, 7, 6, 7, 13, 7, 11, 13, 12,
+            14, 1, 14, 3, 4, 13, 12, 10, 5, 12, 12, 4, 5, 6,
+            9, 12, 13, 3, 4, 13, 8, 14, 3, 2, 8, 5, 6, 13, 8, 7, 4, 5, 8, 14, 8, 14, 7, 5, 4, 9, 12, 12, 10, 3, 1, 12,
+            5, 1, 11, 6, 10, 5, 14, 4, 5, 13, 8, 11, 13, 4, 9,
+            9, 7, 6, 2, 2, 5, 12, 13, 13, 6, 11, 13, 12, 10, 6, 7, 1, 2, 6, 1, 9, 10, 14, 7, 9, 2, 2, 2, 8, 8, 11, 14,
+            12, 9, 13, 1
+    };
+
+    int[] types;
+    long next;
+    long mask;
+
+    @Setup
+    public void initDataSet() {
+        types = DATASET;
+        next = 0;
+        mask = types.length - 1;
+        if (Integer.bitCount(types.length) != 1) {
+            throw new AssertionError("The data set should contains power of 2 items");
+        }
+    }
+
+    @Benchmark
+    public MqttMessageType getViaArray() {
+        long next = this.next;
+        int nextIndex = (int) (next & mask);
+        MqttMessageType type = MqttMessageType.valueOf(types[nextIndex]);
+        this.next = next + 1;
+        return type;
+    }
+
+    @Benchmark
+    public MqttMessageType getViaSwitch() {
+        long next = this.next;
+        int nextIndex = (int) (next & mask);
+        MqttMessageType type = switchValueOf(types[nextIndex]);
+        this.next = next + 1;
+        return type;
+    }
+
+    private static MqttMessageType switchValueOf(int type) {
+        switch (type) {
+        case 1:
+            return MqttMessageType.CONNECT;
+        case 2:
+            return MqttMessageType.CONNACK;
+        case 3:
+            return MqttMessageType.PUBLISH;
+        case 4:
+            return MqttMessageType.PUBACK;
+        case 5:
+            return MqttMessageType.PUBREC;
+        case 6:
+            return MqttMessageType.PUBREL;
+        case 7:
+            return MqttMessageType.PUBCOMP;
+        case 8:
+            return MqttMessageType.SUBSCRIBE;
+        case 9:
+            return MqttMessageType.SUBACK;
+        case 10:
+            return MqttMessageType.UNSUBSCRIBE;
+        case 11:
+            return MqttMessageType.UNSUBACK;
+        case 12:
+            return MqttMessageType.PINGREQ;
+        case 13:
+            return MqttMessageType.PINGRESP;
+        case 14:
+            return MqttMessageType.DISCONNECT;
+        default:
+            throw new IllegalArgumentException("unknown message type: " + type);
+        }
+    }
+}
diff --git a/microbench/src/main/java/io/netty/handler/codec/mqtt/package-info.java b/microbench/src/main/java/io/netty/handler/codec/mqtt/package-info.java
new file mode 100644
index 0000000000..ccfe620f71
--- /dev/null
+++ b/microbench/src/main/java/io/netty/handler/codec/mqtt/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2020 The Netty Project
+ *
+ * The Netty Project 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.
+ */
+/**
+ * Benchmarks for {@link io.netty.handler.codec.mqtt}.
+ */
+package io.netty.handler.codec.mqtt;