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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.Threading;
using Grpc.Core;
using Grpc.Core.Internal;
using System.Collections.Generic;
using System.Diagnostics;
namespace Grpc.Microbenchmarks
{
public class SendMessageBenchmark
{
static readonly NativeMethods Native = NativeMethods.Get();
GrpcEnvironment environment;
public void Init()
{
Native.grpcsharp_test_override_method("grpcsharp_call_start_batch", "nop");
environment = GrpcEnvironment.AddRef();
}
public void Cleanup()
{
GrpcEnvironment.ReleaseAsync().Wait();
// TODO(jtattermusch): track GC stats
}
public void Run(int threadCount, int iterations, int payloadSize)
{
Console.WriteLine(string.Format("SendMessageBenchmark: threads={0}, iterations={1}, payloadSize={2}", threadCount, iterations, payloadSize));
var threadedBenchmark = new ThreadedBenchmark(threadCount, () => ThreadBody(iterations, payloadSize));
threadedBenchmark.Run();
}
private void ThreadBody(int iterations, int payloadSize)
{
// TODO(jtattermusch): parametrize by number of pending completions.
// TODO(jtattermusch): parametrize by cached/non-cached BatchContextSafeHandle
var completionRegistry = new CompletionRegistry(environment);
var cq = CompletionQueueSafeHandle.CreateAsync(completionRegistry);
var call = CreateFakeCall(cq);
var sendCompletionCallback = new NopSendCompletionCallback();
var payload = new byte[payloadSize];
var writeFlags = default(WriteFlags);
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
call.StartSendMessage(sendCompletionCallback, payload, writeFlags, false);
var callback = completionRegistry.Extract(completionRegistry.LastRegisteredKey);
callback.OnComplete(true);
}
stopwatch.Stop();
Console.WriteLine("Elapsed millis: " + stopwatch.ElapsedMilliseconds);
cq.Dispose();
}
private static CallSafeHandle CreateFakeCall(CompletionQueueSafeHandle cq)
{
var call = CallSafeHandle.CreateFake(new IntPtr(0xdead), cq);
bool success = false;
while (!success)
{
// avoid calling destroy on a nonexistent grpc_call pointer
call.DangerousAddRef(ref success);
}
return call;
}
private class NopSendCompletionCallback : ISendCompletionCallback
{
public void OnSendCompletion(bool success)
{
// NOP
}
}
}
}
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