The performance trade-offs of implementing a large scale real-time application using the Windows NT operating system

We investigate an approach for systems that have a mix of real-time and non-real-time requirements. In this approach non-real-time processes use the Windows NT(R) operating system, and real-time processes run on a commercially available real-time extension to NT. We evaluate this system by first studying the overhead and side effects of running two operating systems on a single platform. We next address the suitability of implementing a large-scale application by porting a tactical display system from Windows NT to the INtime real-time extension to NT. We evaluate this system, both subjectively and quantitatively and find it to be a good approach for implementing systems with a mix of real-time and non-real-time requirements