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A comparison on interactivity of three Linux schedulers in embedded system

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2 Author(s)
Yigui Luo ; Embedded Syst. Lab., Tongji Univ., Shanghai, China ; Bolin Wu

This paper presents an comparison on interactivity of three Linux schedulers: O (1), CFS and MIOS [1], in an embedded system. We have ported the O (1) and MIOS into Linux 2.6.32, and done the test in this framework. Different experiments in both high workload and low workload are done in a 0.16 millisecond accuracy. The result shows that a) CFS is not the best in interactivity comparing with O(1) and MIOS; b) CFS is more fair even in high workload; c) O(1) and MIOS differ very slightly on interactivity for sub-millisecond level tasks; d) MIOS works better on scalability testing of hackbench[6] than the other two. The experimental result shows the acceptable interactivity on these schedulers, but possible enhancements still can make, even on MIOS.

Published in:

Communications, Computers and Signal Processing (PacRim), 2011 IEEE Pacific Rim Conference on

Date of Conference:

23-26 Aug. 2011