我正在创建一个控制台应用程序来监听tcp / IP端口并将数据保存到sql server并且它工作正常但是 SQLServer服务占用CPU使用率的99％ 我的服务器配置 窗口服务器2012 - intel xeon - 16G Ram 平均数据2包/秒 代码
public class StateObject{
public Socket workSocket = null;
// Size of receive buffer.
public const int BufferSize = 1024;
// Receive buffer.
public byte[] buffer = new byte[BufferSize];
// Received data string.
public StringBuilder sb = new StringBuilder();}
public class AsynchronousSocketListener{
public static ManualResetEvent allDone = new ManualResetEvent(false);
public AsynchronousSocketListener()
{
}
public static void StartListening()
{
// Data buffer for incoming data.
byte[] bytes = new Byte[1024];
// Establish the local endpoint for the socket.
// The DNS name of the computer
// running the listener is "host.contoso.com".
IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPAddress local = IPAddress.Parse("xxx.xxx.xx.xxx");
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, xxxx);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and listen for incoming connections.
try
{
listener.Bind(localEndPoint);
listener.Listen(100);
while (true)
{
// Set the event to nonsignaled state.
allDone.Reset();
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for a connection...");
listener.BeginAccept(
new AsyncCallback(AcceptCallback),
listener);
Console.WriteLine("Got Connection");
// Wait until a connection is made before continuing.
allDone.WaitOne();
}
}
catch (Exception e)
{
Console.WriteLine("Error in connection");
}
}
public static void AcceptCallback(IAsyncResult ar)
{
Console.WriteLine("Start Call");
// Signal the main thread to continue.
allDone.Set();
// Get the socket that handles the client request.
Socket listener = (Socket)ar.AsyncState;
Socket handler = listener.EndAccept(ar);
// Create the state object.
StateObject state = new StateObject();
state.workSocket = handler;
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
new AsyncCallback(ReadCallback), state);
}
public static void ReadCallback(IAsyncResult ar)
{
String content = String.Empty;
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
// Read data from the client socket.
int bytesRead = handler.EndReceive(ar);
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(
state.buffer, 0, bytesRead));
// Check for end-of-file tag. If it is not there, read
// more data.
content = state.sb.ToString();
try
{
SaveData(content);
// Not all data received. Get more.
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
new AsyncCallback(ReadCallback), state);
// }
}
catch (Exception e)
{
// Console.WriteLine(e.ToString());
}
}
}
static async Task<List<int>> GetGeo(int CarID, int BranchID, int CompID)
{
List<int> Geos = new List<int>();
List<int> RejectedGeos = new List<int>();
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
//SQL Server Query
}
}
return Geos;
}
static Task CloseAlarm(double Lat, double Lng, string Date, double Speed, int CarID, double MaxSpeed, int GeoID, int AlarmType, int CompID, List<int> CurrGeos)
{
Task t = new Task(() =>
{
string ConnStr = "Data Source =.; Initial Catalog = GPS_Tracking;Integrated Security = True";
try
{
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand comm = new SqlCommand())
{
//SQl Save Command
}
}
}
catch { }
});
t.Start();
return t;
}
static Task insertAlarm(double Lat, double Lng, string Date, double Speed, int CarID, double MaxSpeed, int GeoID, int AlarmType, int CompID)
{
Task t = new Task(() =>
{
string ConnStr = "Data Source =.; Initial Catalog = GPS_Tracking;Integrated Security = True";
try
{
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand comm = new SqlCommand("Select * from T_GeoFence2 where isdeleted=0 and CompanyID=" + CompID, conn))
{
// SQL Save Command
}
}
}
catch (Exception ex) { }
});
t.Start();
return t;
}
static Task SaveAlarms(double Lat, double Lng, string Date, double Speed, int CarID, int BranchID, int CompID, double MaxSpeed)
{
Task t = new Task(() =>
{
List<int> Geos = GetGeo(CarID, BranchID, CompID).Result;
List<int> CurrGeos = new List<int>();
bool saveSpeedAlarm = true;
string point = "Point(" + Lat + " , " + Lng + ",4326)";
string ConnStr = "Data Source =.; Initial Catalog = GPS_Tracking;Integrated Security = True";
try
{
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand comm = new SqlCommand())
{
// SQL Check
if (MaxSpeed < Speed && saveSpeedAlarm)
{
insertAlarm(Lat, Lng, Date, Speed, CarID, MaxSpeed, 0, 2, CompID);
}
else
{
CloseAlarm(Lat, Lng, Date, Speed, CarID, MaxSpeed, 0, 2, CompID, new List<int>());
}
CloseAlarm(Lat, Lng, Date, Speed, CarID, MaxSpeed, 0, 1, CompID, CurrGeos);
}
}
}
catch (Exception ex) { }
});
t.Start();
return t;
}
private static void Send(Socket handler, String data)
{
// Convert the string data to byte data using ASCII encoding.
byte[] byteData = Encoding.ASCII.GetBytes(data);
// Begin sending the data to the remote device.
handler.BeginSend(byteData, 0, byteData.Length, 0,
new AsyncCallback(SendCallback), handler);
}
private static void SendCallback(IAsyncResult ar)
{
try
{
// Retrieve the socket from the state object.
Socket handler = (Socket)ar.AsyncState;
// Complete sending the data to the remote device.
int bytesSent = handler.EndSend(ar);
// Console.WriteLine("Sent {0} bytes to client.", bytesSent);
handler.Shutdown(SocketShutdown.Both);
handler.Close();
}
catch (Exception e)
{
// Console.WriteLine(e.ToString());
}
}
private static Task SaveData(string data)
{
Task t = new Task(() =>
{
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
//More SQL
}
}
///////Save Arabic Tracking////////////////////
SaveTrackingAR(latmap, lngmap, IMEI, myDate, Speed, SafeArea, DangerArea, CarID, distance);
////////////////////////////////////
///////////////Save English Tracking ////////////////////
SaveTrackingEN(latmap, lngmap, IMEI, myDate, Speed, SafeArea, DangerArea, CarID, distance);
////////////////////////////////////
SaveAlarms(latmap, lngmap, myDate, Speed, CarID, CarBranch, CarCompany, CarMaxSpeed);
});
t.Start();
return t;
}
private static Task SaveTrackingAR(double latmap, double lngmap, string IMEI, string myDate, double Speed, int SafeArea, int DangerArea, int CarID, double distance)
{
Task t = new Task(() =>
{
// Some Long Running Code ..
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
// SQL Data
if (dtLoc.Rows.Count > 0)
{
}
else
{
string locationsRequest = CreateRequest(latmap, lngmap);
// XmlDocument locationsResponse = MakeRequest(locationsRequest);
XDocument xmlDoc = XDocument.Load(locationsRequest);
// Handle XMl
}
}
});
t.Start();
return t;
}
private static Task SaveTrackingEN(double latmap, double lngmap, string IMEI, string myDate, double Speed, int SafeArea, int DangerArea, int CarID, double distance)
{
Task t = new Task(() =>
{
// Some Long Running Code ..
using (SqlConnection conn = new SqlConnection(ConnStr))
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
// SQl Data
if (dtLoc.Rows.Count > 0)
{
}
else
{
string locationsRequest = CreateRequestEN(latmap, lngmap);
// XmlDocument locationsResponse = MakeRequest(locationsRequest);
XDocument xmlDoc = XDocument.Load(locationsRequest);
}
}
});
t.Start();
return t;
}
private static string CreateRequest(double latmap, double lngmap)
{
return "http://maps.googleapis.com/maps/api/geocode/xml?latlng=" + latmap + "," + lngmap + "&sensor=true&language=ar";
}
private static string CreateRequestEN(double latmap, double lngmap)
{
return "http://maps.googleapis.com/maps/api/geocode/xml?latlng=" + latmap + "," + lngmap + "&sensor=true&language=en";
}
public static XmlDocument MakeRequest(string requestUrl)
{
try
{
HttpWebRequest request = WebRequest.Create(requestUrl) as HttpWebRequest;
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(response.GetResponseStream());
return (xmlDoc);
}
catch (Exception e)
{
// Console.WriteLine(e.Message);
// Console.Read();
return null;
}
}
public static int Main(String[] args)
{
StartListening();
return 0;
}
我使用任务试图减少cpu消耗 我有很多sql查询和数据保存但它是必需的 我可以在我的案例中使用哪些优化方法（任务 - 异步 - 等） 但是我的一些查询依赖于彼此 我必须从数据库检查是否保存警报，如果是，则不再保存 如果没有保存
谢谢