using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace 测试interlock { class Program { private static object lockObj = new object(); private static int Count = 0; static void Main(string[] args) { int threadCount = 10; for (int k = 0; k < 10; k++) { Count = 0; var watch = new Stopwatch(); watch.Start(); var tasks = new List<Task>(); for (int i = 0; i < threadCount; i++) { var task = Task.Factory.StartNew( () => { for (int j = 0; j < 10000000; j++) { OnlyLockTest(); } }); tasks.Add(task); } Task.WaitAll(tasks.ToArray()); watch.Stop(); Console.WriteLine(k + 1 + " 线程数:" + threadCount + ", Lock耗时:" + watch.ElapsedTicks + ",计算结果: " + Count); Count = 0; watch = new Stopwatch(); watch.Start(); var tasks1 = new List<Task>(); for (int i = 0; i < threadCount; i++) { var task = Task.Factory.StartNew( () => { for (int j = 0; j < 10000000; j++) { InterlockedTest(); } }); tasks1.Add(task); } Task.WaitAll(tasks1.ToArray()); watch.Stop(); Console.WriteLine(k + 1 + " 线程数:" + threadCount + ", Interlocked耗时:" + watch.ElapsedTicks + ",计算结果: " + Count); } Console.ReadKey(); } private static void OnlyLockTest() { lock (lockObj) { Count++; } } private static void InterlockedTest() { Interlocked.Increment(ref Count); } } }
原文 https://blog.csdn.net/sinat_31608641/article/details/108033922