Exact comparison of fixed priority and EDF scheduling based on speedup factors for both pre-emptive and non-pre-emptive paradigms
Exact comparison of fixed priority and EDF scheduling based on speedup factors for both pre-emptive and non-pre-emptive paradigms
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基于抢占式和非抢占式范例的加速因子的固定优先级和 EDF 调度的精确比较
DOI:
10.1007/s11241-015-9233-0
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发表时间:
2015
影响因子:
1.3
通讯作者:
Davis R
中科院分区:
文献类型:
--
作者:
Davis R
This paper investigates the relative effectiveness of fixed priority (FP) scheduling in a uniprocessor system compared to earliest deadline first (EDF) scheduling. The quantitative metric used in this comparison is the processor speedup factor, defined as the factor by which processor speed needs to increase to ensure that any task set that is schedulable according to EDF can be scheduled using fixed priorities. In the pre-emptive case, exact speedup factors are known for sporadic task sets with implicit or constrained deadlines. In this paper, we derive exact speedup factors for both pre-emptive and non-pre-emptive fixed priority scheduling of arbitrary deadline sporadic task sets. We also show that the exact speedup factor for the pre-emptive case holds when tasks share resources according to the stack resource policy/deadline floor protocol.
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DOI:
--
发表时间:
2009
期刊:
Euromicro Conference on Real-Time Systems
影响因子:
--
作者:
L. George;J. Hermant
通讯作者:
J. Hermant
DOI:
--
发表时间:
2015
期刊:
Euromicro Conference on Real-Time Systems
影响因子:
--
作者:
G. V. D. Brüggen;Jian;Wen
通讯作者:
Wen
DOI:
--
发表时间:
1995
期刊:
Proceedings of IEEE 36th Annual Foundations of Computer Science
影响因子:
--
作者:
B. Kalyanasundaram;K. Pruhs
通讯作者:
K. Pruhs
影响因子:
1.3
作者:
Robert I. Davis;T. Rothvoss;Sanjoy Baruah;A. Burns
通讯作者:
A. Burns
DOI:
--
发表时间:
1980
期刊:
International Symposium on Computer Modeling, Measurement and Evaluation
影响因子:
--
作者:
K. Kim;Mahmoud Naghibzadeh
通讯作者:
Mahmoud Naghibzadeh