title: How to write data immediatly to socket without using flush and waitFOrBytesWritten with QTCPSocket
body: <p>In my application, While writing to socket the data is not written immediately. 
  But if i use the flush() or waitForByteWritten(msec) then it get written. 
  But here the only problem with flush() and waitforByteWritten() is its creating a performance bottleneck. </p>
  
  <p>If i use it then performance is not so good. But if i doesn't use flush()/waitforBytesWritten() then data itself doesn't transfer immediately.</p>
  
  <p>Is there any flag or something so that data can be written as the data is written to buffer.</p>