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A Loadable Task Execution Recorder for Hierarchical Scheduling in Linux
Publication Type:
Conference/Workshop Paper
Venue:
17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA11)
Abstract
This paper presents a Hierarchical Scheduling Framework
(HSF) recorder for Linux-based operating systems. The HSF-recorder is
a loadable kernel module that is capable of recording tasks and servers
without requiring any kernel modifications. Hence, it complies with the
reliability and stability requirements in the area of embedded systems
where proven versions of Linux are preferred. The recorder is built upon
the loadable real-time scheduler framework RESCH (REal-time SCHed-
uler). We evaluate our recorder by comparing the overhead of this solu-
tion against two other recorders. Also, the tracing accuracy of the HSF-
recorder is tested by running a media-processing task together with
periodic real-time Linux tasks in combination with servers. We experiment
with different task parameters and scheduling strategies and measure
the performance of the media-processing task. The tests are recorded
with the HSF-recorder, and the Ftrace recorder, in order to show the
correctness of the experiments and the HSF-recorder itself.
Bibtex
@inproceedings{Asberg2002,
author = {Mikael {\AA}sberg and Thomas Nolte and Shinpei Kato},
title = {A Loadable Task Execution Recorder for Hierarchical Scheduling in Linux},
month = {August},
year = {2011},
booktitle = {17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA11)},
publisher = {IEEE},
url = {http://www.es.mdu.se/publications/2002-}
}