关于WEBAPI 开启后CPU占用居高不下的解决方法

本文链接：https://blog.youkuaiyun.com/weixin_43577161/article/details/88311721

近期做了一个WPF+webapi+selfhost的项目，发现当UI不进行任何操作时CPU占用竟然也高达25%，后台一直在执行这样一个线程：

                    Thread td = new Thread(new ThreadStart(
            () =>
            {
                Assembly.Load("Hisense Medical QCS, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");
                //HttpSelfHostConfiguration configuration = new HttpSelfHostConfiguration("http://localhost:12340");
                HttpSelfHostConfiguration configuration = new HttpSelfHostConfiguration("http://localhost:" + ConfigurationSettings.AppSettings["port"]);
                using (HttpSelfHostServer httpServer = new HttpSelfHostServer(configuration))
                {
                    httpServer.Configuration.Routes.MapHttpRoute(
                        "DefaultApi",
                        "api/{controller}/{id}/{administrator}",
                        new { id = RouteParameter.Optional, administrator = RouteParameter.Optional });
                    httpServer.OpenAsync().Wait();

                    while (true)
                    {                           
                    }                        
                }                    
            }
        ));

如果没有while（true）这个死循环，API接口无法被调用，后来在网上找到了解决方法，在死循环中让线程休眠1毫秒就可以了。

                    Thread td = new Thread(new ThreadStart(
            () =>
            {
                Assembly.Load("Hisense Medical QCS, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");
                //HttpSelfHostConfiguration configuration = new HttpSelfHostConfiguration("http://localhost:12340");
                HttpSelfHostConfiguration configuration = new HttpSelfHostConfiguration("http://localhost:" + ConfigurationSettings.AppSettings["port"]);
                using (HttpSelfHostServer httpServer = new HttpSelfHostServer(configuration))
                {
                    httpServer.Configuration.Routes.MapHttpRoute(
                        "DefaultApi",
                        "api/{controller}/{id}/{administrator}",
                        new { id = RouteParameter.Optional, administrator = RouteParameter.Optional });
                    httpServer.OpenAsync().Wait();
                    while (true)
                    {       
                         Thread.Sleep(1);                    
                    }                        
                }                    
            }
        ));