I mostly pipe everything through SDL. mplayer works through SDL, and most games use SDL. Like when I'm playing a shooting game when I press fire, I hear the shooting sound about a second later. Can I do anything to SDL to give it realtime priority?
And what about artsd. When I click the run with realtime priority check-box it doesn't do much?
Could you tell us a little bit more about your system? The stock fedora kernel should do much better than this without realtime scheduling unless the system is really loaded down, doing lot's of paging to/from disk etc. I tend to discourage realtime schuling as it gives the RT app the ability to completely lock your system if it happens to get into an infinite loop, and multimedia apps are particularly likely to do this do to the unpredictable quality of data files and data streams that get thrown at them.
-Steve
