1 #region Copyright notice and license
2 
3 // Copyright 2015 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.Runtime.InteropServices;
21 using System.Threading;
22 using Grpc.Core;
23 using Grpc.Core.Internal;
24 using System.Collections.Generic;
25 using System.Diagnostics;
26 
27 namespace Grpc.Microbenchmarks
28 {
29     public class CompletionRegistryBenchmark
30     {
31         GrpcEnvironment environment;
32 
Init()33         public void Init()
34         {
35             environment = GrpcEnvironment.AddRef();
36         }
37 
Cleanup()38         public void Cleanup()
39         {
40             GrpcEnvironment.ReleaseAsync().Wait();
41         }
42 
Run(int threadCount, int iterations, bool useSharedRegistry)43         public void Run(int threadCount, int iterations, bool useSharedRegistry)
44         {
45             Console.WriteLine(string.Format("CompletionRegistryBenchmark: threads={0}, iterations={1}, useSharedRegistry={2}", threadCount, iterations, useSharedRegistry));
46             CompletionRegistry sharedRegistry = useSharedRegistry ? new CompletionRegistry(environment, () => BatchContextSafeHandle.Create(), () => RequestCallContextSafeHandle.Create()) : null;
47             var threadedBenchmark = new ThreadedBenchmark(threadCount, () => ThreadBody(iterations, sharedRegistry));
48             threadedBenchmark.Run();
49             // TODO: parametrize by number of pending completions
50         }
51 
ThreadBody(int iterations, CompletionRegistry optionalSharedRegistry)52         private void ThreadBody(int iterations, CompletionRegistry optionalSharedRegistry)
53         {
54             var completionRegistry = optionalSharedRegistry ?? new CompletionRegistry(environment, () => throw new NotImplementedException(), () => throw new NotImplementedException());
55             var ctx = BatchContextSafeHandle.Create();
56 
57             var stopwatch = Stopwatch.StartNew();
58             for (int i = 0; i < iterations; i++)
59             {
60                 completionRegistry.Register(ctx.Handle, ctx);
61                 var callback = completionRegistry.Extract(ctx.Handle);
62                 // NOTE: we are not calling the callback to avoid disposing ctx.
63             }
64             stopwatch.Stop();
65             Console.WriteLine("Elapsed millis: " + stopwatch.ElapsedMilliseconds);
66 
67             ctx.Recycle();
68         }
69 
70         private class NopCompletionCallback : IOpCompletionCallback
71         {
OnComplete(bool success)72             public void OnComplete(bool success)
73             {
74 
75             }
76         }
77     }
78 }
79