static void DemoNonDSLDisruptor()
{
var bufferSize = (int)Math.Pow(2, 4);
var ringBuffer = RingBuffer <DataVO> .CreateSingleProducer(() => new DataVO(), bufferSize);
var barrier = ringBuffer.NewBarrier();
var eventProcessor = new BatchEventProcessor <DataVO>(ringBuffer, barrier, new DataEventHandler("Handler1"));
Task.Factory.StartNew(() => eventProcessor.Run());
var task = Task.Run(() => eventProcessor.Run());
var sequenceNo = ringBuffer.Next();
Console.WriteLine($"Current SequenceNo:{sequenceNo.ToString()}");
var data = ringBuffer[sequenceNo];
data.Value = "Hello";
ringBuffer.Publish(sequenceNo);
sequenceNo = ringBuffer.Next();
Console.WriteLine($"Current SequenceNo:{sequenceNo.ToString()}");
data = ringBuffer[sequenceNo];
data.Value = "World";
ringBuffer.Publish(sequenceNo);
Thread.Sleep(3000);
eventProcessor.Halt();
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
fizzBuzzHandler.rset(latch, batchProcessorFizzBuzz.Sequence.Value + ITERATIONS);
Task.Run(() => batchProcessorFizz.Run());
Task.Run(() => batchProcessorBuzz.Run());
Task.Run(() => batchProcessorFizzBuzz.Run());
Stopwatch start = Stopwatch.StartNew();
for (long i = 0; i < ITERATIONS; i++)
{
long sequence = ringBuffer.Next();
ringBuffer[sequence].Value = i;
ringBuffer.Publish(sequence);
}
//mr.WaitOne ();
latch.Wait();
long opsPerSecond = (ITERATIONS * 1000L) / (start.ElapsedMilliseconds);
batchProcessorFizz.Halt();
batchProcessorBuzz.Halt();
batchProcessorFizzBuzz.Halt();
PerfTestUtil.failIfNot(expectedResult, fizzBuzzHandler.FizzBuzzCounter);
return(opsPerSecond);
}
protected override long RunDisruptorPass()
{
var latch = new ManualResetEvent(false);
stepThreeFunctionHandler.Reset(latch, stepThreeBatchProcessor.Sequence.Value + ITERATIONS);
Task.Factory.StartNew(() => stepOneBatchProcessor.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
Task.Factory.StartNew(() => stepTwoBatchProcessor.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
Task.Factory.StartNew(() => stepThreeBatchProcessor.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
var runTime = Stopwatch.StartNew();
var operandTwo = OPERAND_TWO_INITIAL_VALUE;
for (long i = 0; i < ITERATIONS; i++)
{
var sequence = ringBuffer.Next();
var @event = ringBuffer[sequence];
@event.OperandOne = i;
@event.OperandTwo = operandTwo--;
ringBuffer.Publish(sequence);
}
latch.WaitOne();
var opsPerSecond = (ITERATIONS * 1000L) / runTime.ElapsedMilliseconds;
stepOneBatchProcessor.Halt();
stepTwoBatchProcessor.Halt();
stepThreeBatchProcessor.Halt();
InitResult();
Assert.AreEqual(expectedResult, stepThreeFunctionHandler.GetStepThreeCounter);
return(opsPerSecond);
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
long expectedCount = batchEventProcessor.Sequence.Value + ITERATIONS;
handler.reset(latch, expectedCount);
//executor.submit(batchEventProcessor);
//Task.Factory.StartNew(() => batchEventProcessor.Run()
// , CancellationToken.None
// , TaskCreationOptions.LongRunning
// , new LimitedConcurrencyLevelTaskScheduler(4));
ThreadPool.UnsafeQueueUserWorkItem(o => batchEventProcessor.Run(), null);
Stopwatch start = Stopwatch.StartNew();
RingBuffer <ValueEvent> rb = ringBuffer;
for (long i = 0; i < ITERATIONS; i++)
{
long next = rb.Next();
rb[next].Value = i;
rb.Publish(next);
}
latch.Wait();
long opsPerSecond = (ITERATIONS * 1000L) / (start.ElapsedMilliseconds);
waitForEventProcessorSequence(expectedCount);
batchEventProcessor.Halt();
PerfTestUtil.failIfNot(expectedResult, handler.Value);
return(opsPerSecond);
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
stepThreeFunctionHandler.reset(latch, stepThreeBatchProcessor.Sequence.Value + ITERATIONS);
Task.Run(() => stepOneBatchProcessor.Run());
Task.Run(() => stepTwoBatchProcessor.Run());
Task.Run(() => stepThreeBatchProcessor.Run());
Stopwatch start = Stopwatch.StartNew();
long operandTwo = OPERAND_TWO_INITIAL_VALUE;
for (long i = 0; i < ITERATIONS; i++)
{
long sequence = ringBuffer.Next();
FunctionEvent @event = ringBuffer[sequence];
@event.OperandOne = i;
@event.OperandTwo = operandTwo--;
ringBuffer.Publish(sequence);
}
latch.Wait();
long opsPerSecond = (ITERATIONS * 1000L) / (start.ElapsedMilliseconds);
stepOneBatchProcessor.Halt();
stepTwoBatchProcessor.Halt();
stepThreeBatchProcessor.Halt();
PerfTestUtil.failIfNot(expectedResult, stepThreeFunctionHandler.StepThreeCounter);
return(opsPerSecond);
}
public void ShouldCallExceptionHandlerOnUncaughtException()
{
var ex = new Exception();
var exceptionHandlerMock = new Mock <IExceptionHandler>();
_batchEventProcessor.SetExceptionHandler(exceptionHandlerMock.Object);
_batchHandlerMock.Setup(bh => bh.OnEvent(_ringBuffer[0], 0, true))
.Throws(ex); // OnNext raises an expcetion
exceptionHandlerMock.Setup(bh => bh.HandleEventException(ex, 0, _ringBuffer[0]))
.Callback(() => _countDownEvent.Signal()); // Exception should be handled here and signal the CDE
//var thread = new Thread(_batchEventProcessor.Run);
//thread.Start();
var _task = Task.Factory.StartNew(() => _batchEventProcessor.Run());
_ringBuffer.Publish(_ringBuffer.Next());
_countDownEvent.Wait(50);
_batchEventProcessor.Halt();
SpinWait.SpinUntil(() => _task.IsCompleted);
//thread.Join();
_batchHandlerMock.VerifyAll();
exceptionHandlerMock.VerifyAll();
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
handler.reset(latch, batchEventProcessor.Sequence.Value + ((ITERATIONS / NUM_PUBLISHERS) * NUM_PUBLISHERS));
Task[] task = new Task[NUM_PUBLISHERS];
//for (int i = 0; i < NUM_PUBLISHERS; Interlocked.Increment(ref i))
//{
// task[i] = Task.Run(() => valuePublishers[i].Run());
//}
task[0] = Task.Factory.StartNew(() => valuePublishers[0].Run());
task[1] = Task.Factory.StartNew(() => valuePublishers[1].Run());
task[2] = Task.Factory.StartNew(() => valuePublishers[2].Run());
//ThreadPool.QueueUserWorkItem(o=>{},null);
Task.Factory.StartNew(() => batchEventProcessor.Run());
var stopWatch = Stopwatch.StartNew();
cyclicBarrier.SignalAndWait();
try
{
Task.WaitAll(task);
}
catch (AggregateException ex)
{
Console.WriteLine(ex.ToString());
}
latch.Wait();
stopWatch.Stop();
var millisecongd = stopWatch.ElapsedMilliseconds;
long opsPerSecond = (ITERATIONS * 1000L) / (millisecongd == 0?1:millisecongd);
batchEventProcessor.Halt();
return(opsPerSecond);
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
long expectedCount = batchEventProcessor.Sequence.Value + ITERATIONS;
handler.Reset(latch, ITERATIONS);
Task.Factory.StartNew(() => batchEventProcessor.Run());
Stopwatch start = Stopwatch.StartNew();
RingBuffer <long[]> rb = ringBuffer;
for (long i = 0; i < ITERATIONS; i++)
{
long next = rb.Next();
long[] @event = rb.Get(next);
for (int j = 0; j < @event.Length; j++)
{
@event[j] = i;
}
rb.Publish(next);
}
latch.Wait();
long opsPerSecond = (ITERATIONS * ARRAY_SIZE * 1000L) / (start.ElapsedMilliseconds);
waitForEventProcessorSequence(expectedCount);
batchEventProcessor.Halt();
PerfTestUtil.failIf(0, handler.Value);
return(opsPerSecond);
}
public void Run(Stopwatch sw)
{
var mre = new ManualResetEvent(false);
_fizzBuzzHandler.Reset(mre, _batchProcessorFizzBuzz.Sequence.Value + _iterations);
var processorTask1 = Task.Run(() => _batchProcessorFizz.Run());
var processorTask2 = Task.Run(() => _batchProcessorBuzz.Run());
var processorTask3 = Task.Run(() => _batchProcessorFizzBuzz.Run());
_batchProcessorFizz.WaitUntilStarted(TimeSpan.FromSeconds(5));
_batchProcessorBuzz.WaitUntilStarted(TimeSpan.FromSeconds(5));
_batchProcessorFizzBuzz.WaitUntilStarted(TimeSpan.FromSeconds(5));
sw.Start();
for (long i = 0; i < _iterations; i++)
{
var sequence = _ringBuffer.Next();
_ringBuffer[sequence].Value = i;
_ringBuffer.Publish(sequence);
}
mre.WaitOne();
sw.Stop();
_batchProcessorFizz.Halt();
_batchProcessorBuzz.Halt();
_batchProcessorFizzBuzz.Halt();
Task.WaitAll(processorTask1, processorTask2, processorTask3);
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
handler.reset(latch, batchEventProcessor.Sequence.Value + ((ITERATIONS / NUM_PUBLISHERS) * NUM_PUBLISHERS));
Task[] task = new Task[NUM_PUBLISHERS];
//for (int i = 0; i < NUM_PUBLISHERS; i++)
//{
// task[i] = Task.Run(() => valuePublishers[i].Run());
//}
task[0] = Task.Factory.StartNew(() => valuePublishers[0].Run());
task[1] = Task.Factory.StartNew(() => valuePublishers[1].Run());
task[2] = Task.Factory.StartNew(() => valuePublishers[2].Run());
//Task.Run(() => batchEventProcessor.Run());
Task.Factory.StartNew(() => batchEventProcessor.Run());
var stopWatch = Stopwatch.StartNew();
cyclicBarrier.SignalAndWait();
Task.WaitAll(task);
latch.Wait();
long opsPerSecond = (ITERATIONS * 1000L) / (stopWatch.ElapsedMilliseconds);
batchEventProcessor.Halt();
return(opsPerSecond);
}
public long Run(Stopwatch stopwatch)
{
_cyclicBarrier.Reset();
var latch = new ManualResetEvent(false);
_handler.Reset(latch, _batchEventProcessor.Sequence.Value + ((_iterations / _numPublishers) * _numPublishers));
var futures = new Task[_numPublishers];
for (var i = 0; i < _numPublishers; i++)
{
var index = i;
futures[i] = Task.Factory.StartNew(() => _valuePublishers[index](_cyclicBarrier, _ringBuffer, _iterations), CancellationToken.None, TaskCreationOptions.None, _scheduler);
}
var processorTask = Task.Factory.StartNew(() => _batchEventProcessor.Run(), CancellationToken.None, TaskCreationOptions.None, _scheduler);
stopwatch.Start();
_cyclicBarrier.Signal();
_cyclicBarrier.Wait();
for (var i = 0; i < _numPublishers; i++)
{
futures[i].Wait();
}
latch.WaitOne();
stopwatch.Stop();
_batchEventProcessor.Halt();
processorTask.Wait(2000);
return(_iterations);
}
protected override long RunDisruptorPass()
{
var latch = new ManualResetEvent(false);
fizzBuzzHandler.Reset(latch, batchProcessorFizzBuzz.Sequence.Value + ITERATIONS);
Task.Factory.StartNew(() => batchProcessorFizz.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
Task.Factory.StartNew(() => batchProcessorBuzz.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
Task.Factory.StartNew(() => batchProcessorFizzBuzz.Run(), CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default);
var run = DateTime.Now;//Stopwatch.StartNew();
for (long i = 0; i < ITERATIONS; i++)
{
var sequence = ringBuffer.Next();
ringBuffer[sequence].Value = i;
ringBuffer.Publish(sequence);
}
latch.WaitOne();
var opsPerSecond = (ITERATIONS * 1000L) / (long)DateTime.Now.Subtract(run).Milliseconds;
batchProcessorFizz.Halt();
batchProcessorBuzz.Halt();
batchProcessorFizzBuzz.Halt();
Assert.AreEqual(ExpectedResult, fizzBuzzHandler.FizzBuzzCounter);
return(opsPerSecond);
}
private const int _ringSize = 16; // Must be multiple of 2
static void Main(string[] args)
{
var sw = new Stopwatch();
sw.Start();
var ringBuffer = RingBuffer <MyValueEntry> .CreateSingleProducer(() => new MyValueEntry(), _ringSize, new YieldingWaitStrategy());
//Case A: 1 Producer - 1 Consumer (Unicast event)
var sequenceBarrier = ringBuffer.NewBarrier();
var batchProcessorPrintVal = new BatchEventProcessor <MyValueEntry>(ringBuffer, sequenceBarrier, new MyValueAdditionHandler());
var processorTask1 = Task.Run(() => batchProcessorPrintVal.Run());
batchProcessorPrintVal.WaitUntilStarted(TimeSpan.FromSeconds(5));
Simulator.SimulatePublishEvent(ringBuffer, 1000);
batchProcessorPrintVal.Halt();
Task.WaitAll(processorTask1);
sw.Stop();
Console.WriteLine($"elapsed {sw.ElapsedMilliseconds} ms");
Console.Read();
}
private void RunDisruptorPass()
{
var latch = new System.Threading.ManualResetEvent(false);
stepThreeFunctionHandler.Reset(latch, stepThreeBatchProcessor.Sequence.Value + ITERATIONS);
Task.Factory.StartNew(() => stepOneBatchProcessor.Run());
Task.Factory.StartNew(() => stepTwoBatchProcessor.Run());
Task.Factory.StartNew(() => stepThreeBatchProcessor.Run());
for (long i = 0; i < ITERATIONS; i++)
{
var t0 = Stopwatch.GetTimestamp();
var sequence = ringBuffer.Next();
ringBuffer[sequence].Value = t0;
ringBuffer.Publish(sequence);
var pauseStart = Stopwatch.GetTimestamp();
while (PAUSE_NANOS > ((Stopwatch.GetTimestamp() - pauseStart) * TicksToNanos))
{
// busy spin
}
}
latch.WaitOne();
stepOneBatchProcessor.Halt();
stepTwoBatchProcessor.Halt();
stepThreeBatchProcessor.Halt();
}
public long Run(Stopwatch stopwatch)
{
var latch = new ManualResetEvent(false);
_fizzBuzzHandler.Reset(latch, _batchProcessorFizzBuzz.Sequence.Value + _iterations);
var processorTask1 = Task.Run(() => _batchProcessorFizz.Run());
var processorTask2 = Task.Run(() => _batchProcessorBuzz.Run());
var processorTask3 = Task.Run(() => _batchProcessorFizzBuzz.Run());
stopwatch.Start();
for (long i = 0; i < _iterations; i++)
{
var sequence = _ringBuffer.Next();
_ringBuffer[sequence].Value = i;
_ringBuffer.Publish(sequence);
}
latch.WaitOne();
stopwatch.Stop();
_batchProcessorFizz.Halt();
_batchProcessorBuzz.Halt();
_batchProcessorFizzBuzz.Halt();
Task.WaitAll(processorTask1, processorTask2, processorTask3);
PerfTestUtil.FailIfNot(_expectedResult, _fizzBuzzHandler.FizzBuzzCounter);
return(_iterations);
}
private void RunDisruptorPass()
{
var latch = new ManualResetEvent(false);
var barrier = new Barrier(3);
pinger.Reset(barrier, latch, histogram);
ponger.Reset(barrier);
System.Threading.Tasks.Task.Factory.StartNew(() => pongProcessor.Run());
System.Threading.Tasks.Task.Factory.StartNew(() => pingProcessor.Run());
barrier.SignalAndWait();
latch.WaitOne();
pingProcessor.Halt();
pongProcessor.Halt();
}
public void Should_Call_Exception_Handler_On_Uncaught_Exception()
{
var exceptionLatch = new CountdownEvent(1);
var exceptionHandler = new LatchExceptionHandler(exceptionLatch);
var processor = new BatchEventProcessor <StubEvent>(_ringBuffer, _barrier, new ExceptionEventHandler(), exceptionHandler);
_ringBuffer.AddGatingSequences(processor.GetSequence());
var thread = new Thread(() => processor.Run());
thread.Start();
_ringBuffer.Publish(_ringBuffer.Next());
Assert.True(exceptionLatch.Wait(TimeSpan.FromSeconds(2000)));
processor.Halt();
thread.Join();
}
public void ShouldCallMethodsInLifecycleOrderForBatch()
{
var eventSignal = new CountdownEvent(3);
var eventHandler = new ActionEventHandler <StubEvent>(x => eventSignal.Signal());
var batchEventProcessor = new BatchEventProcessor <StubEvent>(_ringBuffer, _sequenceBarrier, eventHandler);
_ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
var task = Task.Run(() => batchEventProcessor.Run());
Assert.IsTrue(eventSignal.Wait(TimeSpan.FromSeconds(2)));
batchEventProcessor.Halt();
Assert.IsTrue(task.Wait(500));
}
public void ShouldCallExceptionHandlerOnUncaughtException()
{
var exceptionSignal = new CountdownEvent(1);
var exceptionHandler = new ActionExceptionHandler <StubEvent>(x => exceptionSignal.Signal());
var eventHandler = new ActionEventHandler <StubEvent>(x => throw new NullReferenceException());
var batchEventProcessor = new BatchEventProcessor <StubEvent>(_ringBuffer, _sequenceBarrier, eventHandler);
_ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
batchEventProcessor.SetExceptionHandler(exceptionHandler);
var task = Task.Run(() => batchEventProcessor.Run());
_ringBuffer.Publish(_ringBuffer.Next());
Assert.IsTrue(exceptionSignal.Wait(TimeSpan.FromSeconds(2)));
batchEventProcessor.Halt();
Assert.IsTrue(task.Wait(500));
}
public void Should_Call_Methods_In_Lifecycle_Order_For_Batch()
{
var eventLatch = new CountdownEvent(3);
var eventHandler = new LatchEventHandler(eventLatch);
var processor = new BatchEventProcessor <StubEvent>(_ringBuffer, _barrier, eventHandler, _exceptionHandler);
_ringBuffer.AddGatingSequences(processor.GetSequence());
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
var thread = new Thread(() => processor.Run());
thread.Start();
Assert.True(eventLatch.Wait(TimeSpan.FromSeconds(2)));
processor.Halt();
thread.Join();
}
static void DemoNonDSLUnicast()
{
var ringBuffer = RingBuffer <DataVO> .CreateSingleProducer(() => new DataVO(), (int)Math.Pow(2, 4));
var barrier = ringBuffer.NewBarrier();
var eventProcessor = new BatchEventProcessor <DataVO>(ringBuffer, barrier, new DataEventHandler("Handler1"));
Task.Factory.StartNew(() => eventProcessor.Run());
var idx = 0;
while (true)
{
var sequenceNo = ringBuffer.Next();
var data = ringBuffer[sequenceNo];
data.Value = idx++.ToString();
ringBuffer.Publish(sequenceNo);
Thread.Sleep(250);
}
eventProcessor.Halt();
}
public void ReportAccurateBatchSizesAtBatchStartTime()
{
var batchSizes = new List <long>();
var signal = new CountdownEvent(6);
var batchEventProcessor = new BatchEventProcessor <StubEvent>(_ringBuffer, _sequenceBarrier, new LoopbackEventHandler(_ringBuffer, batchSizes, signal));
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
_ringBuffer.Publish(_ringBuffer.Next());
var task = Task.Run(() => batchEventProcessor.Run());
signal.Wait();
batchEventProcessor.Halt();
Assert.IsTrue(task.Wait(500));
Assert.That(batchSizes, Is.EqualTo(new List <long> {
3, 2, 1
}));
}
protected override long RunDisruptorPass()
{
CountdownEvent latch = new CountdownEvent(1);
//ManualResetEvent latch = new ManualResetEvent(false);
long expectedCount = batchEventProcessor.Sequence.Value + ITERATIONS * BATCH_SIZE;
handler.reset(latch, expectedCount);
Task.Factory.StartNew(() => batchEventProcessor.Run()
, CancellationToken.None
, TaskCreationOptions.LongRunning
, new LimitedConcurrencyLevelTaskScheduler(4));
//ThreadPool.QueueUserWorkItem(o=>batchEventProcessor.Run());
Stopwatch start = Stopwatch.StartNew();
RingBuffer <ValueEvent> rb = ringBuffer;
for (long i = 0; i < ITERATIONS; i++)
{
long hi = rb.Next(BATCH_SIZE);
long lo = hi - (BATCH_SIZE - 1);
for (long l = lo; l <= hi; l++)
{
rb.Get(l).Value = i;
}
rb.Publish(lo, hi);
}
latch.Wait();
long opsPerSecond = (BATCH_SIZE * ITERATIONS * 1000L) / (start.ElapsedMilliseconds);
waitForEventProcessorSequence(expectedCount);
batchEventProcessor.Halt();
Console.WriteLine("expectedResult={0:###,###,###},realValue={1:###,###,###}", expectedResult, handler.Value);
PerfTestUtil.failIfNot(expectedResult, handler.Value);
return(opsPerSecond);
}
