public void TestMemory()
{
int times = 5000000;
IDuplicateRemover duplicateRemover = new BloomFilterDuplicateRemover(times, 0.005);
long used = GetProcessUsedMemory();
long time = DateTime.UtcNow.CurrentTimeMillis();
for (int i = 0; i < times; i++)
{
duplicateRemover.IsDuplicate(new Request(i.ToString(), null), null);
}
Console.WriteLine("Time used by bloomfilter:" + (DateTime.UtcNow.CurrentTimeMillis() - time));
Console.WriteLine("Memory used by bloomfilter:" + (GetProcessUsedMemory() - used));
duplicateRemover = new HashSetDuplicateRemover();
GC.Collect();
used = GetProcessUsedMemory();
time = DateTime.UtcNow.CurrentTimeMillis();
for (int i = 0; i < times; i++)
{
duplicateRemover.IsDuplicate(new Request(i.ToString(), null), null);
}
Console.WriteLine("Time used by hashset:" + (DateTime.UtcNow.CurrentTimeMillis() - time));
Console.WriteLine("Memory used by hashset:" + (GetProcessUsedMemory() - used));
}
public void HashSetDuplicateSynchronized()
{
HashSetDuplicateRemover scheduler = new HashSetDuplicateRemover();
bool isDuplicate = scheduler.IsDuplicate(new Request("http://www.a.com", 1, null));
Assert.IsFalse(isDuplicate);
Parallel.For(0, 1000, new ParallelOptions() { MaxDegreeOfParallelism = 30 }, i =>
{
isDuplicate = scheduler.IsDuplicate(new Request("http://www.a.com", 1, null));
Assert.IsTrue(isDuplicate);
});
}
public void HashSetDuplicate()
{
HashSetDuplicateRemover scheduler = new HashSetDuplicateRemover();
bool isDuplicate = scheduler.IsDuplicate(new Request("http://www.a.com", 1, null), null);
Assert.IsFalse(isDuplicate);
isDuplicate = scheduler.IsDuplicate(new Request("http://www.a.com", 1, null), null);
Assert.IsTrue(isDuplicate);
isDuplicate = scheduler.IsDuplicate(new Request("http://www.b.com", 1, null), null);
Assert.IsFalse(isDuplicate);
isDuplicate = scheduler.IsDuplicate(new Request("http://www.b.com", 1, null), null);
Assert.IsTrue(isDuplicate);
}