ADD: added new version of protobuf

libs/protobuf/csharp/src/Google.Protobuf.Benchmarks/GoogleMessageBenchmark.cs

@@ -0,0 +1,124 @@
+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2019 Google Inc.  All rights reserved.
+// https://github.com/protocolbuffers/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#endregion
+
+using BenchmarkDotNet.Attributes;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace Google.Protobuf.Benchmarks
+{
+    /// <summary>
+    /// Benchmark for serializing and deserializing of standard datasets that are also
+    /// measured by benchmarks in other languages.
+    /// Over time we may wish to test the various different approaches to serialization and deserialization separately.
+    /// See https://github.com/protocolbuffers/protobuf/blob/main/benchmarks/README.md
+    /// See https://github.com/protocolbuffers/protobuf/blob/main/docs/performance.md
+    /// </summary>
+    [MemoryDiagnoser]
+    public class GoogleMessageBenchmark
+    {
+        /// <summary>
+        /// All the datasets to be tested. Add more datasets to the array as they're available.
+        /// (When C# supports proto2, this will increase significantly.)
+        /// </summary>
+        public static BenchmarkDatasetConfig[] DatasetConfigurations => new[]
+        {
+            // short name is specified to make results table more readable
+            new BenchmarkDatasetConfig("dataset.google_message1_proto3.pb", "goog_msg1_proto3")
+        };
+
+        [ParamsSource(nameof(DatasetConfigurations))]
+        public BenchmarkDatasetConfig Dataset { get; set; }
+
+        private MessageParser parser;
+        /// <summary>
+        /// Each data set can contain multiple messages in a single file.
+        /// Each "write" operation should write each message in turn, and each "parse"
+        /// operation should parse each message in turn.
+        /// </summary>
+        private List<SubTest> subTests;
+
+        [GlobalSetup]
+        public void GlobalSetup()
+        {
+            parser = Dataset.Parser;
+            subTests = Dataset.Payloads.Select(p => new SubTest(p, parser.ParseFrom(p))).ToList();
+        }
+
+        [Benchmark]
+        public void WriteToStream() => subTests.ForEach(item => item.WriteToStream());
+
+        [Benchmark]
+        public void ToByteArray() => subTests.ForEach(item => item.ToByteArray());
+
+        [Benchmark]
+        public void ParseFromByteArray() => subTests.ForEach(item => item.ParseFromByteArray(parser));
+
+        [Benchmark]
+        public void ParseFromStream() => subTests.ForEach(item => item.ParseFromStream(parser));
+
+        private class SubTest
+        {
+            private readonly Stream destinationStream;
+            private readonly Stream sourceStream;
+            private readonly byte[] data;
+            private readonly IMessage message;
+
+            public SubTest(byte[] data, IMessage message)
+            {
+                destinationStream = new MemoryStream(data.Length);
+                sourceStream = new MemoryStream(data);
+                this.data = data;
+                this.message = message;
+            }
+
+            public void Reset() => destinationStream.Position = 0;
+
+            public void WriteToStream()
+            {
+                destinationStream.Position = 0;
+                message.WriteTo(destinationStream);
+            }
+
+            public void ToByteArray() => message.ToByteArray();
+
+            public void ParseFromByteArray(MessageParser parser) => parser.ParseFrom(data);
+
+            public void ParseFromStream(MessageParser parser)
+            {
+                sourceStream.Position = 0;
+                parser.ParseFrom(sourceStream);
+            }
+        }
+    }
+}