protected Session(string sessionName, DiagnoserActionParameters details, EtwProfilerConfig config, DateTime creationTime)
{
Details = details;
Config = config;
FilePath = ArtifactFileNameHelper.GetTraceFilePath(details, creationTime, FileExtension).EnsureFolderExists();
TraceEventSession = new TraceEventSession(sessionName, FilePath)
{
BufferSizeMB = config.BufferSizeInMb,
CpuSampleIntervalMSec = config.CpuSampleIntervalInMilliseconds,
};
Console.CancelKeyPress += OnConsoleCancelKeyPress;
AppDomain.CurrentDomain.ProcessExit += OnProcessExit;
}
public void Handle(HostSignal signal, DiagnoserActionParameters parameters)
{
if (signal != HostSignal.BeforeAnythingElse)
{
return;
}
var diagnosticsClient = new DiagnosticsClient(parameters.Process.Id);
EventPipeSession session = diagnosticsClient.StartEventPipeSession(eventPipeProviders, true);
var fileName = ArtifactFileNameHelper.GetTraceFilePath(parameters, DateTime.Now, "nettrace").EnsureFolderExists();
benchmarkToTraceFile[parameters.BenchmarkCase] = fileName;
collectingTask = Task.Run(() => CopyEventStreamToFile(session, fileName, parameters.Config.GetCompositeLogger()));
}
public void OnWindowsWeMustAlwaysUseOldLongPathsLimitForSessionFiles()
{
var config = DefaultConfig.Instance
.WithArtifactsPath(@"C:\Projects\performance\artifacts\bin\MicroBenchmarks\Release\netcoreapp5.0\BenchmarkDotNet.Artifacts");
var benchmarkCase = BenchmarkConverter.TypeToBenchmarks(typeof(RentReturnArrayPoolTests <byte>), config).BenchmarksCases.First();
var parameters = new DiagnoserActionParameters(
process: null,
benchmarkCase: benchmarkCase,
new BenchmarkId(0, benchmarkCase));
foreach (string fileExtension in new[] { "etl", "kernel.etl", "userheap.etl" })
{
var traceFilePath = ArtifactFileNameHelper.GetTraceFilePath(parameters, new System.DateTime(2020, 10, 1), fileExtension);
Assert.InRange(actual: traceFilePath.Length, low: 0, high: 260);
}
}