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using System;
using System.IO;
using Tracing.Tests.Common;
using Microsoft.Diagnostics.Tracing;
using Microsoft.Diagnostics.Tracing.Parsers;
using Microsoft.Diagnostics.Tracing.Parsers.Clr;
namespace Tracing.Tests
{
class EventPipeTrace
{
private static int allocIterations = 10000;
private static int gcIterations = 10;
static void AssertEqual<T>(T left, T right) where T : IEquatable<T>
{
if (left.Equals(right) == false)
{
throw new Exception(string.Format("Values were not equal! {0} and {1}", left, right));
}
}
static int Main(string[] args)
{
bool pass = true;
bool keepOutput = false;
// Use the first arg as an output filename if there is one
string outputFilename = null;
if (args.Length >= 1) {
outputFilename = args[0];
keepOutput = true;
}
else {
outputFilename = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".netperf";
}
try
{
Console.WriteLine("\tStart: Enable tracing.");
TraceControl.EnableDefault(outputFilename);
Console.WriteLine("\tEnd: Enable tracing.\n");
Console.WriteLine("\tStart: Generating CLR events");
// Allocate for allocIterations iterations.
for(int i=0; i<allocIterations; i++)
{
GC.KeepAlive(new object());
}
// GC gcIternation times
for(int i=0; i<gcIterations; i++)
{
GC.Collect();
}
Console.WriteLine("\tEnd: Generating CLR Events\n");
Console.WriteLine("\tStart: Disable tracing.");
TraceControl.Disable();
Console.WriteLine("\tEnd: Disable tracing.\n");
Console.WriteLine("\tStart: Processing events from file.");
int allocTickCount = 0;
int gcTriggerCount = 0;
using (var trace = TraceEventDispatcher.GetDispatcherFromFileName(outputFilename))
{
trace.Clr.GCAllocationTick += delegate(GCAllocationTickTraceData data)
{
allocTickCount += 1;
// Some basic integrity checks
// AssertEqual(data.TypeName, "System.Object"); https://github.com/Microsoft/perfview/issues/470
AssertEqual(data.AllocationKind.ToString(), GCAllocationKind.Small.ToString());
AssertEqual(data.ProviderName, "Microsoft-Windows-DotNETRuntime");
AssertEqual(data.EventName, "GC/AllocationTick");
};
trace.Clr.GCTriggered += delegate(GCTriggeredTraceData data)
{
gcTriggerCount += 1;
// Some basic integrity checks
AssertEqual(data.Reason.ToString(), GCReason.Induced.ToString());
AssertEqual(data.ProviderName, "Microsoft-Windows-DotNETRuntime");
AssertEqual(data.EventName, "GC/Triggered");
};
trace.Process();
}
Console.WriteLine("\tEnd: Processing events from file.\n");
Console.WriteLine("\tProcessed {0} GCAllocationTick events", allocTickCount);
Console.WriteLine("\tProcessed {0} GCTriggered events", gcTriggerCount);
pass &= allocTickCount > 0;
pass &= gcTriggerCount == gcIterations;
}
finally {
if (keepOutput)
{
Console.WriteLine("\n\tOutput file: {0}", outputFilename);
}
else
{
System.IO.File.Delete(outputFilename);
}
}
return pass ? 100 : 0;
}
}
}
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