The Dresden Real-Time Operating Systems Project is a research project aiming at the support of applications with Quality of Service requirements.
Although much research has been done on networking support for continuous-media applications, very few projects tackle related operating system issues, such as scheduling and file system support for bounded response time. The DROPS project attempts to find design techniques for the construction of distributed real time operating systems whose every component guarantees a certain level of service to applications.
A key component is L4Linux, the Linux server on top of the L4 microkernel; it services standard Linux applications. In addition, separate real time components - designed from scratch - provide deterministic service to real time applications. The project is supported by DFG (Deutsche Forschungsgemeinschaft, SFB 358, Teilprojekt G2).