High performance Http Server

Hi,

I want to write a high performance http server. The attached code is what I came up with so far.
Benchmarking showed that it serves just a little more than an apache http server - while apache does a lot more.

Any suggestions on how I could improve this?

thanks,
Niko

Code:

#include <QCoreApplication>
#include <QTcpServer>
#include <QThreadPool>
#include <QDateTime>
#include <QTcpSocket>
#include <QStringList>
 
class Request : public QRunnable
{
public:
    Request (int socketDescriptor)
    : m_socketDescriptor(socketDescriptor)
    {}
 
    virtual void run()
    {
        QTcpSocket socket;
        socket.setSocketDescriptor(m_socketDescriptor);
        socket.waitForReadyRead();
        QStringList tokens = QString(socket.readLine()).split(QRegExp("[ \r\n][ \r\n]*"));
        if (tokens[0] == "GET") {
            QTextStream os(&socket);
            os.setAutoDetectUnicode(true);
            os << "HTTP/1.0 200 Ok\r\n"
                "Content-Type: text/html; charset=\"utf-8\"\r\n"
                "\r\n"
                "<h1>Nothing to see here</h1>\n"
                << QDateTime::currentDateTime().toString() << "\n";
            socket.close();
            socket.waitForDisconnected();
        }
    }
 
private:
    int m_socketDescriptor;
};
 
class HttpDaemon : public QTcpServer
{
public:
    HttpDaemon(quint16 port, QObject* parent = 0)
        : QTcpServer(parent)
    {
        if (!listen(QHostAddress::Any, port)) {
            qFatal(errorString().toAscii());
        }
        QThreadPool::globalInstance()->setMaxThreadCount(10);
    }
 
private:
    void incomingConnection(int socket)
    {
        Request *r = new Request(socket);
        QThreadPool::globalInstance()->start(r);
    }
};
 
int main(int argc, char** argv)
{
    QCoreApplication app(argc, argv);
    HttpDaemon daemon(8080);
    return app.exec();
}