public void Run()
{
running.Data = true;
while (running.Data)
{
try
{
switch (functionStep)
{
case FunctionStep.ONE:
case FunctionStep.TWO:
{
outputQueue.Add(inputQueue.Take());
break;
}
case FunctionStep.THREE:
{
long value = inputQueue.Take();
long duration = stopwatch.GetElapsedNanoSeconds() - value;
duration /= 3;
duration -= nanoTimeCost;
histogram.AddObservation(duration);
break;
}
}
sequence.Data++;
}
catch (ThreadInterruptedException)
{
break;
}
}
}
private void InitStopwatchTimeCostNs()
{
long iterations = 10000000;
var stopwatch = new Stopwatch();
stopwatch.Start();
//the stopwatch does the elapsed time so we don't need to maintain a start/finish
//set to do the math ourselves. We do however need a variable to assign to in order
//make sure the runtime invokes stopwatch.ElapsedTicks in our loop
long dummy = stopwatch.GetElapsedNanoSeconds();
for (int i = 0; i < iterations; i++)
{
dummy = stopwatch.GetElapsedNanoSeconds();
}
dummy = stopwatch.GetElapsedNanoSeconds();
stopwatch.Stop();
_stopwatchTimeCostNs = stopwatch.GetElapsedNanoSeconds() / iterations;
}
public void OnAvailable(ValueEntry entry)
{
switch (functionStep)
{
case FunctionStep.ONE:
case FunctionStep.TWO:
break;
case FunctionStep.THREE:
long duration = stopwatch.GetElapsedNanoSeconds() - entry.Value;
duration /= 3;
duration -= stopwatchTimeCostNs;
histogram.AddObservation(duration);
break;
}
}
private void RunDisruptorPass()
{
var thread1 = new Thread(stepOneBatchConsumer.Run);
var thread2 = new Thread(stepTwoBatchConsumer.Run);
var thread3 = new Thread(stepThreeBatchConsumer.Run);
thread1.Start();
thread2.Start();
thread3.Start();
for (long i = 0; i < ITERATIONS; i++)
{
ValueEntry entry = producerBarrier.NextEntry();
entry.Value = _stopwatch.GetElapsedNanoSeconds();
producerBarrier.Commit(entry);
long pauseStart = _stopwatch.GetElapsedNanoSeconds();
while (PAUSE_NANOS > (_stopwatch.GetElapsedNanoSeconds() - pauseStart))
{
//Busy Spin
}
}
long expectedSequence = ringBuffer.Cursor;
while (stepThreeBatchConsumer.Sequence < expectedSequence)
{
//Busy Spin
}
stepOneBatchConsumer.Halt();
stepTwoBatchConsumer.Halt();
stepThreeBatchConsumer.Halt();
thread3.Join();
thread2.Join();
thread1.Join();
}
private void InitStopwatchTimeCostNs()
{
long iterations = 10000000;
var stopwatch = new Stopwatch();
stopwatch.Start();
//the stopwatch does the elapsed time so we don't need to maintain a start/finish
//set to do the math ourselves. We do however need a variable to assign to in order
//make sure the runtime invokes stopwatch.ElapsedTicks in our loop
long dummy = stopwatch.GetElapsedNanoSeconds();
for (int i = 0; i < iterations; i++)
{
dummy = stopwatch.GetElapsedNanoSeconds();
}
dummy = stopwatch.GetElapsedNanoSeconds();
stopwatch.Stop();
_stopwatchTimeCostNs = stopwatch.GetElapsedNanoSeconds() / iterations;
}
