| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #endregion |
| |
| using System; |
| using System.Diagnostics; |
| using System.Runtime.InteropServices; |
| using System.Threading; |
| using System.Threading.Tasks; |
| using Grpc.Core; |
| using Grpc.Core.Internal; |
| using Grpc.Core.Utils; |
| using NUnit.Framework; |
| |
| namespace Grpc.Core.Tests |
| { |
| public class PInvokeTest |
| { |
| static readonly NativeMethods Native = NativeMethods.Get(); |
| |
| int counter; |
| |
| /// <summary> |
| /// (~1.26us .NET Windows) |
| /// </summary> |
| [Test] |
| public void CompletionQueueCreateSyncDestroyBenchmark() |
| { |
| GrpcEnvironment.AddRef(); // completion queue requires gRPC environment being initialized. |
| |
| BenchmarkUtil.RunBenchmark( |
| 10, 10, |
| () => |
| { |
| CompletionQueueSafeHandle cq = CompletionQueueSafeHandle.CreateSync(); |
| cq.Dispose(); |
| }); |
| |
| GrpcEnvironment.ReleaseAsync().Wait(); |
| } |
| |
| /// <summary> |
| /// Approximate results: |
| /// (~80ns Mono Linux) |
| /// (~110ns .NET Windows) |
| /// </summary> |
| [Test] |
| [Category("Performance")] |
| [Ignore("Prevent running on Jenkins")] |
| public void NativeCallbackBenchmark() |
| { |
| NativeCallbackTestDelegate handler = Handler; |
| |
| counter = 0; |
| BenchmarkUtil.RunBenchmark( |
| 1000000, 10000000, |
| () => |
| { |
| Native.grpcsharp_test_callback(handler); |
| }); |
| Assert.AreNotEqual(0, counter); |
| } |
| |
| /// <summary> |
| /// Creating a new native-to-managed callback has significant overhead |
| /// compared to using an existing one. We need to be aware of this. |
| /// (~50us on Mono Linux!!!) |
| /// (~1.1us on .NET Windows) |
| /// </summary> |
| [Test] |
| [Category("Performance")] |
| [Ignore("Prevent running on Jenkins")] |
| public void NewNativeCallbackBenchmark() |
| { |
| counter = 0; |
| BenchmarkUtil.RunBenchmark( |
| 10000, 10000, |
| () => |
| { |
| Native.grpcsharp_test_callback(new NativeCallbackTestDelegate(Handler)); |
| }); |
| Assert.AreNotEqual(0, counter); |
| } |
| |
| /// <summary> |
| /// Tests overhead of a simple PInvoke call. |
| /// (~46ns .NET Windows) |
| /// </summary> |
| [Test] |
| [Category("Performance")] |
| [Ignore("Prevent running on Jenkins")] |
| public void NopPInvokeBenchmark() |
| { |
| BenchmarkUtil.RunBenchmark( |
| 1000000, 100000000, |
| () => |
| { |
| Native.grpcsharp_test_nop(IntPtr.Zero); |
| }); |
| } |
| |
| private void Handler(bool success) |
| { |
| counter++; |
| } |
| } |
| } |