using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace Benchmarking { static class Collections { public static void run() { Random rand = new Random(); Stopwatch sw = new Stopwatch(); Stack stack = new Stack(); Queue queue = new Queue(); List list1 = new List(); List list2 = new List(); LinkedList linkedlist1 = new LinkedList(); LinkedList linkedlist2 = new LinkedList(); int dummy; sw.Reset(); Console.Write("{0,40}", "Pushing to Stack..."); sw.Start(); for (int i = 0; i < 100000; i++) { stack.Push(rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "Poping from Stack..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = stack.Pop(); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "Enqueue to Queue..."); sw.Start(); for (int i = 0; i < 100000; i++) { queue.Enqueue(rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "Dequeue from Queue..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = queue.Dequeue(); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "Insert to List at the front..."); sw.Start(); for (int i = 0; i < 100000; i++) { list1.Insert(0, rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "RemoveAt from List at the front..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = list1[0]; list1.RemoveAt(0); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "Add to List at the end..."); sw.Start(); for (int i = 0; i < 100000; i++) { list2.Add(rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "RemoveAt from List at the end..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = list2[list2.Count - 1]; list2.RemoveAt(list2.Count - 1); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "AddFirst to LinkedList..."); sw.Start(); for (int i = 0; i < 100000; i++) { linkedlist1.AddFirst(rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "RemoveFirst from LinkedList..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = linkedlist1.First(); linkedlist1.RemoveFirst(); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "AddLast to LinkedList..."); sw.Start(); for (int i = 0; i < 100000; i++) { linkedlist2.AddLast(rand.Next()); } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks", sw.ElapsedTicks); sw.Reset(); Console.Write("{0,40}", "RemoveLast from LinkedList..."); sw.Start(); for (int i = 0; i < 100000; i++) { dummy = linkedlist2.Last(); linkedlist2.RemoveLast(); dummy++; } sw.Stop(); Console.WriteLine(" Time used: {0,9} ticks\n", sw.ElapsedTicks); } } }