realtime for freeradius

With modern operating systems we have various server task scheduling options available to use. We can either use OSes modified to provide soft real-time such as versions of Linux. We can also ask the task schedulers to give certain processes either higher priority or to give them real-time alike scheduling, as is possible in Solaris and maybe Linux. I wonder of anyone has experimented with observing FreeRadius performance under load conditions with these options? We shouldn't expect faster performance, but we may achieve more consistent behaviour - for example a smaller variance in response times. Thoughts and suggestions welcome. tariq (this applies not just to freeradius but other server tasks too)