1 #region Copyright notice and license 2 3 // Copyright 2019 The gRPC Authors 4 // 5 // Licensed under the Apache License, Version 2.0 (the "License"); 6 // you may not use this file except in compliance with the License. 7 // You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 17 #endregion 18 19 using System; 20 using System.Collections.Generic; 21 using System.Text; 22 using BenchmarkDotNet.Attributes; 23 using Grpc.Core.Internal; 24 25 namespace Grpc.Microbenchmarks 26 { 27 [ClrJob, CoreJob] // test .NET Core and .NET Framework 28 [MemoryDiagnoser] // allocations 29 public class Utf8Decode 30 { 31 [Params(0, 1, 4, 128, 1024)] 32 public int PayloadSize 33 { 34 get { return payloadSize; } 35 set 36 { 37 payloadSize = value; 38 payload = Invent(value); 39 } 40 } 41 42 private int payloadSize; 43 private byte[] payload; 44 Invent(int length)45 static byte[] Invent(int length) 46 { 47 var rand = new Random(Seed: length); 48 var chars = new char[length]; 49 for(int i = 0; i < chars.Length; i++) 50 { 51 chars[i] = (char)rand.Next(32, 300); 52 } 53 return Encoding.UTF8.GetBytes(chars); 54 } 55 56 const int Iterations = 1000; 57 [Benchmark(OperationsPerInvoke = Iterations)] Decode()58 public unsafe void Decode() 59 { 60 fixed (byte* ptr = payload) 61 { 62 var iPtr = new IntPtr(ptr); 63 for (int i = 0; i < Iterations; i++) 64 { 65 MarshalUtils.PtrToStringUTF8(iPtr, payload.Length); 66 } 67 } 68 } 69 } 70 } 71