Performance Test of List<T>, LinkedList<T>, Queue<T>, ConcurrentQueue<T>

            //Test Group 1
            {
                var watch = Stopwatch.StartNew();
                var list = new List<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.Insert(0, j);
                }
                watch.Stop();
                Console.WriteLine("Insert First::List::" + watch.ElapsedMilliseconds);
            }

            {
                var watch = Stopwatch.StartNew();
                var list = new LinkedList<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.AddFirst(j);
                }
                watch.Stop();
                Console.WriteLine("Insert First::LinkedList::" + watch.ElapsedMilliseconds);
            }

            //Test Group 2:
            {
                var watch = Stopwatch.StartNew();
                var list = new List<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.Add(j);
                }
                watch.Stop();
                Console.WriteLine("Append::List::" + watch.ElapsedMilliseconds);
            }

            {
                var watch = Stopwatch.StartNew();
                var list = new LinkedList<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.AddLast(j);
                }
                watch.Stop();
                Console.WriteLine("Append::LinkedList::" + watch.ElapsedMilliseconds);
            }

            {
                var watch = Stopwatch.StartNew();
                var queue = new Queue<int>();
                for (int j = 0; j < 300000; j++)
                {
                    queue.Enqueue(j);
                }
                watch.Stop();
                Console.WriteLine("Enqueue::Queue::" + watch.ElapsedMilliseconds);
            }

            {
                var watch = Stopwatch.StartNew();
                var queue = new ConcurrentQueue<int>();
                for (int j = 0; j < 300000; j++)
                {
                    queue.Enqueue(j);
                }
                watch.Stop();
                Console.WriteLine("Enqueue::ConcurrentQueue::" + watch.ElapsedMilliseconds);
            }

            //Test Group 3:
            {
                var list = new List<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.Add(j);
                }

                var watch = Stopwatch.StartNew();
                for (int j = 0; j < 300000; j++)
                {
                    var value = list[0];
                    list.RemoveAt(0);
                }
                watch.Stop();
                Console.WriteLine("RemoveAt(0)::List::" + watch.ElapsedMilliseconds);
            }

            {

                var list = new LinkedList<int>();
                for (int j = 0; j < 300000; j++)
                {
                    list.AddLast(j);
                }

                var watch = Stopwatch.StartNew();
                for (int j = 0; j < 300000; j++)
                {
                    var value = list.First.Value;
                    list.RemoveFirst();
                }
                watch.Stop();
                Console.WriteLine("RemoveFirst::LinkedList::" + watch.ElapsedMilliseconds);
            }

            {
                var queue = new Queue<int>();
                for (int j = 0; j < 300000; j++)
                {
                    queue.Enqueue(j);
                }

                var watch = Stopwatch.StartNew();
                for (int j = 0; j < 300000; j++)
                {
                    var value = queue.Dequeue();
                }
                watch.Stop();
                Console.WriteLine("Dequeue::Queue::" + watch.ElapsedMilliseconds);
            }

            {
                var queue = new ConcurrentQueue<int>();
                for (int j = 0; j < 300000; j++)
                {
                    queue.Enqueue(j);
                }

                var watch = Stopwatch.StartNew();
                for (int j = 0; j < 300000; j++)
                {
                    int value;
                    queue.TryDequeue(out value);
                }
                watch.Stop();
                Console.WriteLine("TryDequeue::ConcurrentQueue::" + watch.ElapsedMilliseconds);
            }

List::Insert First::57328 ms
List::Add::8 ms
List::RemoveAt(0)::56700 ms


LinkedList::AddFirst::34 ms
LinkedList::Append::100 ms
LinkedList::RemoveFirst::16 ms

Queue::Enqueue::15 ms
Queue::Dequeue::10 ms

ConcurrentQueue::Enqueue::138 ms
ConcurrentQueue::TryDequeue::18 ms

posted @ 2014-09-04 14:04  昝昝  阅读(301)  评论(0编辑  收藏  举报