Literature Database Entry

hofer2009real-time


Wanja Hofer, Daniel Lohmann, Fabian Scheler and Wolfgang Schröder-Preikschat, "Sloth: Threads as Interrupts," Proceedings of 30th IEEE Real-Time Systems Symposium (RTSS 2009), Washington, D.C., December 2009, pp. 204–213.


Abstract

Traditional operating systems differentiate between threads, which are managed by the kernel scheduler, and interrupt handlers, which are scheduled by the hardware. This approach is not only asymmetrical in its nature, but also introduces problems relevant to real-time systems because low-priority interrupt handlers can interrupt high-priority threads. We propose to internally design all threads as interrupts, thereby simplifying the managed control-flow abstractions and letting the hardware interrupt subsystem do most of the scheduling work. The resulting design of our very light-weight Sloth system is suitable for the implementation of a wide class of embedded real-time systems, which we describe with the example of the OSEK-OS specification. We show that the design conciseness has a positive impact on the system performance, its memory footprint, and maintainability., its overall

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Wanja Hofer
Daniel Lohmann
Fabian Scheler
Wolfgang Schröder-Preikschat

BibTeX reference

@inproceedings{hofer2009real-time,
    author = {Hofer, Wanja and Lohmann, Daniel and Scheler, Fabian and Schr{\"{o}}der-Preikschat, Wolfgang},
    doi = {10.1109/RTSS.2009.18},
    title = {{Sloth: Threads as Interrupts}},
    pages = {204--213},
    publisher = {IEEE},
    address = {Washington, D.C.},
    booktitle = {30th IEEE Real-Time Systems Symposium (RTSS 2009)},
    month = {12},
    year = {2009},
   }
   
   

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