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 BenchmarkDotNet.Attributes; 22 using Grpc.Core; 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 Utf8Encode : ISendStatusFromServerCompletionCallback 30 { 31 [Params(0, 1, 4, 128, 1024)] 32 public int PayloadSize 33 { 34 get { return payloadSize; } 35 set 36 { 37 payloadSize = value; 38 status = new Status(StatusCode.OK, Invent(value)); 39 } 40 } 41 42 private int payloadSize; 43 private Status status; 44 Invent(int length)45 static string 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 new string(chars); 54 } 55 56 private GrpcEnvironment environment; 57 private CompletionRegistry completionRegistry; 58 [GlobalSetup] Setup()59 public void Setup() 60 { 61 var native = NativeMethods.Get(); 62 63 // nop the native-call via reflection 64 NativeMethods.Delegates.grpcsharp_call_send_status_from_server_delegate nop = (CallSafeHandle call, BatchContextSafeHandle ctx, StatusCode statusCode, IntPtr statusMessage, UIntPtr statusMessageLen, MetadataArraySafeHandle metadataArray, int sendEmptyInitialMetadata, SliceBufferSafeHandle optionalSendBuffer, WriteFlags writeFlags) => { 65 completionRegistry.Extract(ctx.Handle).OnComplete(true); // drain the dictionary as we go 66 return CallError.OK; 67 }; 68 native.GetType().GetField(nameof(native.grpcsharp_call_send_status_from_server)).SetValue(native, nop); 69 70 environment = GrpcEnvironment.AddRef(); 71 metadata = MetadataArraySafeHandle.Create(Metadata.Empty); 72 completionRegistry = new CompletionRegistry(environment, () => environment.BatchContextPool.Lease(), () => throw new NotImplementedException()); 73 var cq = CompletionQueueSafeHandle.CreateAsync(completionRegistry); 74 call = CreateFakeCall(cq); 75 } 76 CreateFakeCall(CompletionQueueSafeHandle cq)77 private static CallSafeHandle CreateFakeCall(CompletionQueueSafeHandle cq) 78 { 79 var call = CallSafeHandle.CreateFake(new IntPtr(0xdead), cq); 80 bool success = false; 81 while (!success) 82 { 83 // avoid calling destroy on a nonexistent grpc_call pointer 84 call.DangerousAddRef(ref success); 85 } 86 return call; 87 } 88 89 [GlobalCleanup] Cleanup()90 public void Cleanup() 91 { 92 try 93 { 94 metadata?.Dispose(); 95 metadata = null; 96 call?.Dispose(); 97 call = null; 98 99 if (environment != null) 100 { 101 environment = null; 102 // cleanup seems... unreliable on CLR 103 // GrpcEnvironment.ReleaseAsync().Wait(1000); 104 } 105 } 106 catch (Exception ex) 107 { 108 Console.Error.WriteLine(ex.Message); 109 } 110 } 111 private CallSafeHandle call; 112 private MetadataArraySafeHandle metadata; 113 114 const int Iterations = 1000; 115 [Benchmark(OperationsPerInvoke = Iterations)] SendStatus()116 public unsafe void SendStatus() 117 { 118 for (int i = 0; i < Iterations; i++) 119 { 120 call.StartSendStatusFromServer(this, status, metadata, false, SliceBufferSafeHandle.NullInstance, WriteFlags.NoCompress); 121 } 122 } 123 ISendStatusFromServerCompletionCallback.OnSendStatusFromServerCompletion(bool success)124 void ISendStatusFromServerCompletionCallback.OnSendStatusFromServerCompletion(bool success) { } 125 } 126 } 127