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#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++;
}
}
}
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