protected static PooledDictionary <int, int> CreatePooled(int size)
{
Random rand = new Random(RAND_SEED);
var dict = new PooledDictionary <int, int>();
while (dict.Count < size)
{
int key = rand.Next(500000, int.MaxValue);
dict.TryAdd(key, 0);
}
return(dict);
}