v4.0.0 (#1357)

2026-10-18 18:43:10 +08:00 · 2022-02-20 21:10:46 +01:00
parent 47e674e4d3
commit 2ce9b94ec9
608 changed files with 22364 additions and 19420 deletions
@@ -0,0 +1,90 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using BenchmarkDotNet.Attributes;
+using MQTTnet.Adapter;
+using MQTTnet.Internal;
+using MQTTnet.Packets;
+using System;
+using System.IO;
+using System.Threading;
+using MQTTnet.Diagnostics;
+using MQTTnet.Formatter;
+
+namespace MQTTnet.Benchmarks
+{
+    [MemoryDiagnoser]
+    public sealed class ChannelAdapterBenchmark
+    {
+        MqttChannelAdapter _channelAdapter;
+        int _iterations;
+        MemoryStream _stream;
+        MqttPublishPacket _packet;
+
+        [GlobalSetup]
+        public void Setup()
+        {
+            _packet = new MqttPublishPacket
+            {
+                Topic = "A"
+            };
+
+            var serializer = new MqttPacketFormatterAdapter(MqttProtocolVersion.V311, new MqttBufferWriter(4096, 65535));
+            
+            var serializedPacket = Join(serializer.Encode(_packet).Join());
+
+            _iterations = 10000;
+
+            _stream = new MemoryStream(_iterations * serializedPacket.Length);
+
+            for (var i = 0; i < _iterations; i++)
+            {
+                _stream.Write(serializedPacket, 0, serializedPacket.Length);
+            }
+
+            _stream.Position = 0;
+
+            var channel = new TestMqttChannel(_stream);
+            
+            _channelAdapter = new MqttChannelAdapter(channel, serializer, null, new MqttNetEventLogger());
+        }
+
+        [Benchmark]
+        public void Receive_10000_Messages()
+        {
+            _stream.Position = 0;
+
+            for (var i = 0; i < 10000; i++)
+            {
+                _channelAdapter.ReceivePacketAsync(CancellationToken.None).GetAwaiter().GetResult();
+            }
+
+            _stream.Position = 0;
+        }
+
+        [Benchmark]
+        public void Send_10000_Messages()
+        {
+            _stream.Position = 0;
+
+            for (var i = 0; i < 10000; i++)
+            {
+                _channelAdapter.SendPacketAsync(_packet, CancellationToken.None).GetAwaiter().GetResult();
+            }
+
+            _stream.Position = 0;
+        }
+
+        static byte[] Join(params ArraySegment<byte>[] chunks)
+        {
+            var buffer = new MemoryStream();
+            foreach (var chunk in chunks)
+            {
+                buffer.Write(chunk.Array, chunk.Offset, chunk.Count);
+            }
+
+            return buffer.ToArray();
+        }
+    }
+}