public VeryExpensiveMemoizedServiceCallTask_DictionaryMemoizer(Barrier barrier, DictionaryMemoizer <string> memoizer, string stringArg, long longArg)
: base(barrier)
{
TaskNumber = Interlocked.Increment(ref TASK_COUNTER);
ParticipantNumber = Interlocked.Increment(ref PARTICIPANT_COUNTER);
this.memoizer = memoizer;
Action = () => this.Result = this.memoizer.Invoke(MemoizerTests.ReallySlowNetworkStaticInvocation, stringArg, longArg);
if (Instrumented)
{
Console.WriteLine(this.GetType().Name + " #" + TaskNumber + " created... [(possible) barrier participant #" + ParticipantNumber + "]");
}
}
public void SingleThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks()
{
long startTime = DateTime.Now.Ticks;
DictionaryMemoizer <string> memoizer = new DictionaryMemoizer <string>();
for (int i = 0; i < MemoizerTests.NUMBER_OF_ITERATIONS; ++i)
{
for (int j = 0; j < MemoizerTests.NUMBER_OF_CONCURRENT_TASKS; ++j)
{
string retVal = memoizer.Invoke(MemoizerTests.ReallySlowNetworkStaticInvocation, "SingleThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks", 14L);
Assert.That(retVal, Is.EqualTo(MemoizerTests.METHOD_RESPONSE_ELEMENT + "SingleThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks" + 14L));
}
}
long durationInMilliseconds = (DateTime.Now.Ticks - startTime) / 10000;
Assert.That(durationInMilliseconds, Is.GreaterThanOrEqualTo(MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS));
Console.WriteLine(
"SingleThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks: " + MemoizerTests.NUMBER_OF_ITERATIONS + " iterations of " + MemoizerTests.NUMBER_OF_CONCURRENT_TASKS + " sequential, identical, memoized method invocations with " + MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS + " ms latency" +
" took " + durationInMilliseconds + " ms" +
" (should take > " + MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS + " ms)");
}
public void MultiThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks()
{
long startTime = DateTime.Now.Ticks;
DictionaryMemoizer <string> memoizer = new DictionaryMemoizer <string>();
for (int i = 0; i < MemoizerTests.NUMBER_OF_ITERATIONS; ++i)
{
// Arrange
TwoPhaseExecutor twoPhaseExecutor = new TwoPhaseExecutor(MemoizerTests.NUMBER_OF_CONCURRENT_TASKS);
VeryExpensiveMemoizedServiceCallTask_DictionaryMemoizer[] tasks = new VeryExpensiveMemoizedServiceCallTask_DictionaryMemoizer[MemoizerTests.NUMBER_OF_CONCURRENT_TASKS];
for (int j = 0; j < MemoizerTests.NUMBER_OF_CONCURRENT_TASKS; ++j)
{
tasks[j] = new VeryExpensiveMemoizedServiceCallTask_DictionaryMemoizer(twoPhaseExecutor.Barrier, memoizer, "MultiThreadedMemoizedWithLocksInvocation", 15L);
}
// Act
for (int j = 0; j < MemoizerTests.NUMBER_OF_CONCURRENT_TASKS; ++j)
{
tasks[j].Start();
}
twoPhaseExecutor.Start();
// Assert
for (int j = 0; j < MemoizerTests.NUMBER_OF_CONCURRENT_TASKS; ++j)
{
Assert.That(tasks[j].Result, Is.EqualTo(MemoizerTests.METHOD_RESPONSE_ELEMENT + "MultiThreadedMemoizedWithLocksInvocation" + 15L));
}
}
long durationInMilliseconds = (DateTime.Now.Ticks - startTime) / 10000;
Assert.That(durationInMilliseconds, Is.GreaterThanOrEqualTo(MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS));
Console.WriteLine(
"MultiThreadedMemoizedInvocation_DictionaryMemoizer_WithLocks: " + MemoizerTests.NUMBER_OF_CONCURRENT_TASKS + " concurrent, identical, memoized method invocations." +
" " + MemoizerTests.NUMBER_OF_ITERATIONS + " iterations with " + MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS + " ms latency took " + durationInMilliseconds + " ms" +
" (should take > " + MemoizerTests.NETWORK_RESPONSE_LATENCY_IN_MILLIS + " ms).");
}
