Created
December 6, 2018 12:56
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sealed class GcFinalizersEventListener : EventListener | |
{ | |
// from https://docs.microsoft.com/en-us/dotnet/framework/performance/garbage-collection-etw-events | |
private const int GC_KEYWORD = 0x0000001; | |
private const int TYPE_KEYWORD = 0x0080000; | |
private const int GCHEAPANDTYPENAMES_KEYWORD = 0x1000000; | |
protected override void OnEventSourceCreated(EventSource eventSource) | |
{ | |
Console.WriteLine($"{eventSource.Guid} | {eventSource.Name}"); | |
// look for .NET Garbage Collection events | |
if (eventSource.Name.Equals("Microsoft-Windows-DotNETRuntime")) | |
{ | |
EnableEvents( | |
eventSource, | |
EventLevel.Verbose, | |
(EventKeywords) (GC_KEYWORD | GCHEAPANDTYPENAMES_KEYWORD | TYPE_KEYWORD) | |
); | |
} | |
} | |
// from https://blogs.msdn.microsoft.com/dotnet/2018/12/04/announcing-net-core-2-2/ | |
// Called whenever an event is written. | |
protected override void OnEventWritten(EventWrittenEventArgs eventData) | |
{ | |
... | |
} | |
} | |
class Program | |
{ | |
static void Main(string[] args) | |
{ | |
GcFinalizersEventListener listener = new GcFinalizersEventListener(); | |
Console.WriteLine("\nPress ENTER to trigger a few finalizers..."); | |
Console.ReadLine(); | |
for (int i = 0; i < 4; i++) | |
{ | |
Thread t = new Thread(()=> {}); | |
} | |
GC.Collect(2, GCCollectionMode.Forced, true, true); | |
Console.WriteLine("\nPress ENTER to exit..."); | |
Console.ReadLine(); | |
} | |
} |
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