The Research and Implementation on Extending Algorithm that High Response Ratio Tasks Schedule Preferentially on C/OS-II

DOI

10.2991/ictcs-14.2014.28How to use a DOI?

Keywords

C/OS-II; scheduling policy; High response ratio scheduling preferentially; OSSched OSCtxSw

Abstract

To overcome shortcomings that C/OS-II based on static priority scheduling policy may block the tasks in low priority for a long time task scheduling policy based on high response ratio scheduling preferentially is added and achieved .This scheme divided the task in the system into significant tasks and secondary tasks. The significant tasks possess the low priority value statically and the secondary tasks possess the high priority value dynamically according to response ratio. It revises TCB and rewrites the function named OSSched and OSCtxSw .It maintains the hard real-time characteristic of C/OS-II . Task`s scheduling mode is optimized and application field of C/OS-II is broadened.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Fensu Shi
AU  - Hua Wang
PY  - 2014/05
DA  - 2014/05
TI  - The Research and Implementation on Extending Algorithm that High Response Ratio Tasks Schedule Preferentially on C/OS-II
BT  - Proceedings of the 2nd International Conference on Teaching and Computational Science
PB  - Atlantis Press
SP  - 109
EP  - 111
SN  - 1951-6851
UR  - https://doi.org/10.2991/ictcs-14.2014.28
DO  - 10.2991/ictcs-14.2014.28
ID  - Shi2014/05
ER  -