Conventional operating systems which reliably support competing applications with timing deadlines must include facilities to protect those applications from interfering with one another’s ability to meet their deadlines. In the context of the Dreams model, this paper examines three of the essential components of this temporal protection: a real-time scheduling algorithm, management of processe...

We discuss the design and implementation of a parallel GUI Service in Tessellation OS and investigate its capability to provide soft service-time guarantees to visual applications. Use of GPU bandwidth reservation permits our GUI service to miss only 0.1% of client deadlines under an overloaded scenario, while a more traditional windowing system misses over 50% of its deadlines. Further, the GU...

We abstract the core logical functions from applications that require ultra-low-latency wireless communications to provide a novel definition for reliability. Real-time - such as intelligent transportation, remote surgery, and industrial automation involve significant element of control decision making. Such systems three components: observers (e.g. sensors) measuring state an environment or dy...

Online and omnichannel retailers are proposing increasingly tight delivery deadlines, moving toward instant on-demand delivery. To operate last-mile distribution systems with such deadlines efficiently, defining the right strategic network design is of paramount importance. However, this problem exceeds complexity traditional networks for two main reasons: (1) reduced time available order handl...

Reactive real-time systems must react to external events within time constraints: Triggered tasks must execute within deadlines. Through performance stress testing, the risks of performance failures in real-time systems are reduced. We develop a methodology for the derivation of test cases that aims at maximizing the chances of critical deadline misses within a system. This testing activity is ...