protected override void OnEventCommand(EventCommandEventArgs command)
{
Console.WriteLine("Got Event Command: {0}", command.Command);
foreach (var kvp in command.Arguments)
{
Console.WriteLine("{0}:{1}", kvp.Key, kvp.Value);
}
}
/// <summary>
/// Get callbacks when the ETW sends us commands`
/// </summary>
protected override void OnEventCommand(EventCommandEventArgs command)
{
// To get the AsyncCausality events, we need to inform the AsyncCausalityTracer
if (command.Command == EventCommand.Enable)
AsyncCausalityTracer.EnableToETW(true);
else if (command.Command == EventCommand.Disable)
AsyncCausalityTracer.EnableToETW(false);
if (IsEnabled(EventLevel.Informational, Keywords.TasksFlowActivityIds))
ActivityTracker.Instance.Enable();
else
TasksSetActivityIds = IsEnabled(EventLevel.Informational, Keywords.TasksSetActivityIds);
Debug = IsEnabled(EventLevel.Informational, Keywords.Debug);
DebugActivityId = IsEnabled(EventLevel.Informational, Keywords.DebugActivityId);
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
base.OnEventCommand(command);
if (command.Command == EventCommand.SendManifest ||
command.Command != EventCommand.Disable ||
FunctionDefinitionRequested(command))
{
if (!_initialized)
{
// We're still in the constructor - need to defer sending until we've finished initializing.
Task.Yield().GetAwaiter().OnCompleted(SendFunctionDefinitionsAsync);
return;
}
SendFunctionDefinitions();
}
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
base.OnEventCommand(command);
if (command.Command == EventCommand.SendManifest ||
command.Command != EventCommand.Disable ||
FunctionDefinitionRequested(command))
{
// Use helper functions rather than lambdas since the auto-generated manifest
// doesn't know what to do with compiler generated methods.
// here, we use Task to make things run in background thread
if (initialized)
{
SendFunctionDefinitionsAsync();
}
else
{
// We're still in the constructor, need to defer sending until we've finished initializing
Task.Yield().GetAwaiter().OnCompleted(SendFunctionDefinitionsAsync);
}
}
}
private void OnEventSourceCommand(object?sender, EventCommandEventArgs e)
{
if (e.Command == EventCommand.Enable || e.Command == EventCommand.Update)
{
Debug.Assert(e.Arguments != null);
if (e.Arguments.TryGetValue("EventCounterIntervalSec", out string?valueStr) && float.TryParse(valueStr, out float value))
{
lock (s_counterGroupLock) // Lock the CounterGroup
{
EnableTimer(value);
}
}
}
else if (e.Command == EventCommand.Disable)
{
lock (s_counterGroupLock)
{
DisableTimer();
}
}
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
if (command.Command == EventCommand.Enable)
{
// NOTE: These counters will NOT be disposed on disable command because we may be introducing
// a race condition by doing that. We still want to create these lazily so that we aren't adding
// overhead by at all times even when counters aren't enabled.
// On disable, PollingCounters will stop polling for values so it should be fine to leave them around.
_cpuTimeCounter ??= new PollingCounter("cpu-usage", this, () => RuntimeEventSourceHelper.GetCpuUsage())
{
DisplayName = "CPU Usage", DisplayUnits = "%"
};
_workingSetCounter ??= new PollingCounter("working-set", this, () => (double)(Environment.WorkingSet / 1_000_000))
{
DisplayName = "Working Set", DisplayUnits = "MB"
};
_gcHeapSizeCounter ??= new PollingCounter("gc-heap-size", this, () => (double)(GC.GetTotalMemory(false) / 1_000_000))
{
DisplayName = "GC Heap Size", DisplayUnits = "MB"
};
_gen0GCCounter ??= new IncrementingPollingCounter("gen-0-gc-count", this, () => GC.CollectionCount(0))
{
DisplayName = "Gen 0 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_gen1GCCounter ??= new IncrementingPollingCounter("gen-1-gc-count", this, () => GC.CollectionCount(1))
{
DisplayName = "Gen 1 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_gen2GCCounter ??= new IncrementingPollingCounter("gen-2-gc-count", this, () => GC.CollectionCount(2))
{
DisplayName = "Gen 2 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_threadPoolThreadCounter ??= new PollingCounter("threadpool-thread-count", this, () => ThreadPool.ThreadCount)
{
DisplayName = "ThreadPool Thread Count"
};
_monitorContentionCounter ??= new IncrementingPollingCounter("monitor-lock-contention-count", this, () => Monitor.LockContentionCount)
{
DisplayName = "Monitor Lock Contention Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_threadPoolQueueCounter ??= new PollingCounter("threadpool-queue-length", this, () => ThreadPool.PendingWorkItemCount)
{
DisplayName = "ThreadPool Queue Length"
};
_completedItemsCounter ??= new IncrementingPollingCounter("threadpool-completed-items-count", this, () => ThreadPool.CompletedWorkItemCount)
{
DisplayName = "ThreadPool Completed Work Item Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_allocRateCounter ??= new IncrementingPollingCounter("alloc-rate", this, () => GC.GetTotalAllocatedBytes())
{
DisplayName = "Allocation Rate", DisplayUnits = "B", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_timerCounter ??= new PollingCounter("active-timer-count", this, () => Timer.ActiveCount)
{
DisplayName = "Number of Active Timers"
};
_fragmentationCounter ??= new PollingCounter("gc-fragmentation", this, () => {
var gcInfo = GC.GetGCMemoryInfo();
return(gcInfo.HeapSizeBytes != 0 ? gcInfo.FragmentedBytes * 100d / gcInfo.HeapSizeBytes : 0);
})
{
DisplayName = "GC Fragmentation", DisplayUnits = "%"
};
_committedCounter ??= new PollingCounter("gc-committed", this, () => (double)(GC.GetGCMemoryInfo().TotalCommittedBytes / 1_000_000))
{
DisplayName = "GC Committed Bytes", DisplayUnits = "MB"
};
_exceptionCounter ??= new IncrementingPollingCounter("exception-count", this, () => Exception.GetExceptionCount())
{
DisplayName = "Exception Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_gcTimeCounter ??= new PollingCounter("time-in-gc", this, () => GC.GetLastGCPercentTimeInGC())
{
DisplayName = "% Time in GC since last GC", DisplayUnits = "%"
};
_gen0SizeCounter ??= new PollingCounter("gen-0-size", this, () => GC.GetGenerationSize(0))
{
DisplayName = "Gen 0 Size", DisplayUnits = "B"
};
_gen1SizeCounter ??= new PollingCounter("gen-1-size", this, () => GC.GetGenerationSize(1))
{
DisplayName = "Gen 1 Size", DisplayUnits = "B"
};
_gen2SizeCounter ??= new PollingCounter("gen-2-size", this, () => GC.GetGenerationSize(2))
{
DisplayName = "Gen 2 Size", DisplayUnits = "B"
};
_lohSizeCounter ??= new PollingCounter("loh-size", this, () => GC.GetGenerationSize(3))
{
DisplayName = "LOH Size", DisplayUnits = "B"
};
_pohSizeCounter ??= new PollingCounter("poh-size", this, () => GC.GetGenerationSize(4))
{
DisplayName = "POH (Pinned Object Heap) Size", DisplayUnits = "B"
};
_assemblyCounter ??= new PollingCounter("assembly-count", this, () => System.Reflection.Assembly.GetAssemblyCount())
{
DisplayName = "Number of Assemblies Loaded"
};
_ilBytesJittedCounter ??= new PollingCounter("il-bytes-jitted", this, () => System.Runtime.JitInfo.GetCompiledILBytes())
{
DisplayName = "IL Bytes Jitted", DisplayUnits = "B"
};
_methodsJittedCounter ??= new PollingCounter("methods-jitted-count", this, () => System.Runtime.JitInfo.GetCompiledMethodCount())
{
DisplayName = "Number of Methods Jitted"
};
_jitTimeCounter ??= new IncrementingPollingCounter("time-in-jit", this, () => System.Runtime.JitInfo.GetCompilationTime().TotalMilliseconds)
{
DisplayName = "Time spent in JIT", DisplayUnits = "ms", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
AppContext.LogSwitchValues(this);
}
}
}
}
/// <summary>
/// This method is called when the eventSource is updated by the controller.
/// </summary>
protected virtual void OnEventCommand(EventCommandEventArgs command) { }
private bool FunctionDefinitionRequested(EventCommandEventArgs command)
{
return command.Arguments != null &&
command.Arguments.Keys.FirstOrDefault() == "SendFunctionDefinitions";
}
protected virtual void OnEventCommand(EventCommandEventArgs command)
{
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
Debug.WriteLine(String.Format("EventSourceTest: Got Command {0}", command.Command));
Debug.WriteLine(" Args: " + string.Join(", ", command.Arguments.Select((pair) => string.Format("{0} -> {1}", pair.Key, pair.Value))));
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
base.OnEventCommand(command);
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
if (command.Command == EventCommand.Enable)
{
// NOTE: These counters will NOT be disposed on disable command because we may be introducing
// a race condition by doing that. We still want to create these lazily so that we aren't adding
// overhead by at all times even when counters aren't enabled.
// On disable, PollingCounters will stop polling for values so it should be fine to leave them around.
_cpuTimeCounter = _cpuTimeCounter ?? new PollingCounter("cpu-usage", this, () => RuntimeEventSourceHelper.GetCpuUsage())
{
DisplayName = "CPU Usage"
};
_workingSetCounter = _workingSetCounter ?? new PollingCounter("working-set", this, () => (double)(Environment.WorkingSet / 1000000))
{
DisplayName = "Working Set"
};
_gcHeapSizeCounter = _gcHeapSizeCounter ?? new PollingCounter("gc-heap-size", this, () => (double)(GC.GetTotalMemory(false) / 1000000))
{
DisplayName = "GC Heap Size"
};
_gen0GCCounter = _gen0GCCounter ?? new IncrementingPollingCounter("gen-0-gc-count", this, () => GC.CollectionCount(0))
{
DisplayName = "Gen 0 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_gen1GCCounter = _gen1GCCounter ?? new IncrementingPollingCounter("gen-1-gc-count", this, () => GC.CollectionCount(1))
{
DisplayName = "Gen 1 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_gen2GCCounter = _gen2GCCounter ?? new IncrementingPollingCounter("gen-2-gc-count", this, () => GC.CollectionCount(2))
{
DisplayName = "Gen 2 GC Count", DisplayRateTimeScale = new TimeSpan(0, 1, 0)
};
_exceptionCounter = _exceptionCounter ?? new IncrementingPollingCounter("exception-count", this, () => Exception.GetExceptionCount())
{
DisplayName = "Exception Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_threadPoolThreadCounter = _threadPoolThreadCounter ?? new PollingCounter("threadpool-thread-count", this, () => ThreadPool.ThreadCount)
{
DisplayName = "ThreadPool Thread Count"
};
_monitorContentionCounter = _monitorContentionCounter ?? new IncrementingPollingCounter("monitor-lock-contention-count", this, () => Monitor.LockContentionCount)
{
DisplayName = "Monitor Lock Contention Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_threadPoolQueueCounter = _threadPoolQueueCounter ?? new PollingCounter("threadpool-queue-length", this, () => ThreadPool.PendingWorkItemCount)
{
DisplayName = "ThreadPool Queue Length"
};
_completedItemsCounter = _completedItemsCounter ?? new IncrementingPollingCounter("threadpool-completed-items-count", this, () => ThreadPool.CompletedWorkItemCount)
{
DisplayName = "ThreadPool Completed Work Item Count", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_gcTimeCounter = _gcTimeCounter ?? new PollingCounter("time-in-gc", this, () => GC.GetLastGCPercentTimeInGC())
{
DisplayName = "Time in GC"
};
_gen0SizeCounter = _gen0SizeCounter ?? new PollingCounter("gen-0-size", this, () => GC.GetGenerationSize(0))
{
DisplayName = "Gen 0 Size"
};
_gen1SizeCounter = _gen1SizeCounter ?? new PollingCounter("gen-1-size", this, () => GC.GetGenerationSize(1))
{
DisplayName = "Gen 1 Size"
};
_gen2SizeCounter = _gen2SizeCounter ?? new PollingCounter("gen-2-size", this, () => GC.GetGenerationSize(2))
{
DisplayName = "Gen 2 Size"
};
_lohSizeCounter = _lohSizeCounter ?? new PollingCounter("loh-size", this, () => GC.GetGenerationSize(3))
{
DisplayName = "LOH Size"
};
_allocRateCounter = _allocRateCounter ?? new IncrementingPollingCounter("alloc-rate", this, () => GC.GetTotalAllocatedBytes())
{
DisplayName = "Allocation Rate", DisplayRateTimeScale = new TimeSpan(0, 0, 1)
};
_assemblyCounter = _assemblyCounter ?? new PollingCounter("assembly-count", this, () => System.Reflection.Assembly.GetAssemblyCount())
{
DisplayName = "Number of Assemblies Loaded"
};
}
}
/// <summary>
/// On every command (which the debugger can force by turning on this EventSource with ETW)
/// call a function that the debugger can hook to do an arbitrary func evaluation.
/// </summary>
/// <param name="args"></param>
protected override void OnEventCommand(EventCommandEventArgs args)
{
BreakPointWithDebuggerFuncEval();
}
/// <summary>Called when the current event source is updated by the controller.</summary><param name="command">The arguments for the event.</param>
protected virtual void OnEventCommand(EventCommandEventArgs command)
{
throw new NotImplementedException();
}
// You don't need to define this override, but it does show you when your eventSource gets commands, which
// is helpful for debugging (you know that your EventSource got the command.
protected override void OnEventCommand(EventCommandEventArgs command)
{
EventGenerator.Out.WriteLine("EventSource Gets command {0}", command.Command);
}
protected override void OnEventCommand(EventCommandEventArgs command)
{
base.OnEventCommand(command);
this.Commands.Add(command.Arguments);
}
