Socket and Multithreading   

Hello,

I'm working on creating a multi-player racing game and my server is 
multi-threaded and can send 5 packets/second over the network. I created a 
non-multithreaded server which used blocking and that was doing almost 50 
packets/second. This tells me something happened when I introduced threads. I 
even tried setting the priority to highest but no performance difference :

This is how I crate my thread :

for (;;) /* Run forever */
    {
       clntSock = AcceptTCPConnection(servSock);

        /* Create separate memory for client argument */
        threadArgs = (struct ThreadArgs *) malloc(sizeof(struct ThreadArgs));
        threadArgs -> clntSock = clntSock;
		threadArgs -> servSock = servSock;
		threadArgs -> clntAddr = getClientAddr();

        if (CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) ThreadMain, 
threadArgs, 
              0, (LPDWORD) &threadID) == NULL)
            DieWithError("pthread_create() failed");
        printf("with thread %ld\n", threadID);

    }
    /* NOT REACHED */
}

void *ThreadMain(void *threadArgs)
{
    SOCKET clntSock;                   /* Socket descriptor for client 
connection */
	SOCKET servSock;
	sockaddr clntAddr;

    /* Guarantees that thread resources are deallocated upon return */

    /* Extract socket file descriptor from argument */
    clntSock = ((struct ThreadArgs *) threadArgs) -> clntSock;
	servSock = ((struct ThreadArgs *) threadArgs) -> servSock;
	clntAddr = ((struct ThreadArgs *) threadArgs) -> clntAddr;

    free(threadArgs);              /* Deallocate memory for argument */
	

	/* Handle the clients */
    HandleTCPClient();

    return (NULL);
}

I'm new to threading and don't have much experience any code examples or 
please someone let me know what can be changed.

OS : Win Xp
Visual Studio 2008 Compiler

Please let me know if any other information is required.

date: Mon, 24 Mar 2008 18:20:01 -0700   author:   Harsimrat