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Procrastination scheduling in fixed priority real-time systems
2004
SIGPLAN notices
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We propose algorithms to compute the maximum procrastination intervals for tasks scheduled by either the fixed priority or the dual priority scheduling policy. ...
We show that dual priority scheduling always guarantees longer shutdown intervals than fixed priority scheduling. ...
[20] address procrastination scheduling in periodic real-time systems and have proposed Leakage Control EDF (LC-EDF) and Leakage Control Dual Priority (LC-DP) scheduling algorithms. ...
doi:10.1145/998300.997173
fatcat:dylzghxpxvevddkgzov2t4imwm
Procrastination scheduling in fixed priority real-time systems
2004
Proceedings of the 2004 ACM SIGPLAN/SIGBED conference on Languages, compilers, and tools - LCTES '04
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We propose algorithms to compute the maximum procrastination intervals for tasks scheduled by either the fixed priority or the dual priority scheduling policy. ...
We show that dual priority scheduling always guarantees longer shutdown intervals than fixed priority scheduling. ...
[20] address procrastination scheduling in periodic real-time systems and have proposed Leakage Control EDF (LC-EDF) and Leakage Control Dual Priority (LC-DP) scheduling algorithms. ...
doi:10.1145/997163.997173
dblp:conf/lctrts/JejurikarG04
fatcat:dms25hwcmjdgfkzw2hdkb37i4e
Procrastination Scheduling for Fixed-Priority Tasks with Preemption Thresholds
[chapter]
2008
Lecture Notes in Computer Science
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This paper targets energy-efficient fixed-priority with preemption threshold scheduling for periodic real-time tasks on a uniprocessor DVS system with non-negligible leakage power consumption. ...
Dynamic Voltage Scaling (DVS), which adjusts the clock speed and supply voltage dynamically, is an effective technique in reducing the energy consumption of embedded real-time systems. ...
System Model
Task Model This study deals with the fixed priority preemptive scheduling of tasks in a real-time systems with hard constraints, i.e., systems in which the respect of time constraints is ...
doi:10.1007/978-3-540-88140-7_23
fatcat:hyypwcblungl3pv3ujekoruzgy
A Practical Framework to Study Low-Power Scheduling Algorithms on Real-Time and Embedded Systems
2014
Journal of Low Power Electronics and Applications
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Real-time scheduling is one of the fields that has attracted extensive attention to design low-power, embedded/real-time systems. ...
In this paper, we firstly review the fundamental advances in the research of energy-efficient, real-time scheduling. ...
Acknowledgments This work was supported in part by the National Science Foundation under Award No. 0720856.
Conflicts of Interest The authors declare no conflict of interest. ...
doi:10.3390/jlpea4020090
fatcat:ztn4bws26vd5lh2mvvypg2pnsq
Periodic charging scheme for fixed-priority real-time systems with renewable energy
2014
Proceedings of the 9th IEEE International Symposium on Industrial Embedded Systems (SIES 2014)
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This paper presents a proactive and highly predictable framework, called Periodic Charging Scheme (PCS), for fixed-priority real-time systems with renewable energy. ...
However, the variable nature of the energy supply rate due to the environmental conditions creates serious challenges for embedded real-time systems targeting predictability. ...
CONCLUSIONS In this paper, we addressed the energy management problem for fixed-priority real-time systems with renewable energy. ...
doi:10.1109/sies.2014.6871179
dblp:conf/sies/BambaginiA14
fatcat:occsqhy6knax3fatwfqyq6z24m
Adaptive power management for real-time event streams
2010
2010 15th Asia and South Pacific Design Automation Conference (ASP-DAC)
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Considering two different preemptive scheduling, i.e., earliest deadline first and fixed priority, we propose new method to adaptively control the power mode of the device according to historical arrivals ...
Our method can not only tackle arbitrary event arrivals but also provide hard real-time guarantees with respect to both timing and backlog constraints. ...
for all streams in Sunder the fixed-priority scheduling, if the device provides again full service after r" time unit. ...
doi:10.1109/aspdac.2010.5419928
dblp:conf/aspdac/HuangSCTB10
fatcat:g372igdlcne7nepgxojjste7dq
Enhanced Race-To-Halt: A Leakage-Aware Energy Management Approach for Dynamic Priority Systems
2011
2011 23rd Euromicro Conference on Real-Time Systems
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The recent technology trends have equipped the modern embedded processors with the several sleep states and reduced their overhead (energy/time) of the sleep transition. ...
The state-of-the-art research on static power reduction at system level is based on assumptions that cannot easily be integrated into practical systems. ...
[3] addressed the procrastination scheduling for periodic hard real-time systems and proposed Leakage Control EDF (LC-EDF) and Leakage Control Dual Priority (LC-DP) algorithms. ...
doi:10.1109/ecrts.2011.17
dblp:conf/ecrts/AwanP11
fatcat:5tkqmhf37rblthz4pmrueuq4li
Task-Dependent Processor Shutdown for Hard Real-Time Systems
[chapter]
2009
IFIP Advances in Information and Communication Technology
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In a hard real-time environment, one has to prove the real-time feasibility and thereby to guarantee that energy saving methods do not violate real-time constraints. ...
The point in time when to initiate communication can be chosen manually (sporadic) as well as periodically. In either case the system has to function properly to provide reliable data. ...
Test on Real-Time Feasibility As motivated in the introductory section, we do not want to limit us to periodic only task systems. ...
doi:10.1007/978-3-642-04284-3_12
fatcat:2j4olblkdveynlwhzltwcmkfbu
Productivity for Librarians: How to Get More Done In Less Time
2014
Journal of the Canadian Health Libraries Association
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The results assist in setting up a productive schedule of time and activities. ...
The real value of the book is its practicality; useful tips and strategies are provided that can be used immediately as well as integrated more thoughtfully in the longer term. ...
While a quick and easy read, Productivity for Librarians: How to Get More Done in Less Time does not promise a simple fix to productivity and workÁlife balance. ...
doi:10.5596/c11-063
fatcat:5lkp7q5icvc35btdxvgbk3fshq
A Blocking-Aware Scheduling for Real-Time Task Synchronization Using a Leakage-Controlled Method
2014
International Journal of Distributed Sensor Networks
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Due to the importance of power dissipation in the wireless sensor networks and embedded systems, real-time scheduling has been studied in terms of various optimization problems. ...
Real-time tasks that synchronize to enforce mutually exclusive access to the shared resources could be blocked by lower priority tasks. ...
(ii) P-PCP: all tasks are scheduled using procrastination technique under fixed priority [5] . ...
doi:10.1155/2014/428230
fatcat:nqjfoqw2kfabnndp7rqwmlfqoy
Race-to-halt energy saving strategies
2014
Journal of systems architecture
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We propose a set of leakage-aware energy management approaches that reduce the energy consumption of embedded real-time systems while respecting the real-time constraints. ...
Energy consumption is one of the major issues for modern embedded systems. ...
[7] addressed the leakage-aware scheduling for periodic hard real-time systems. ...
doi:10.1016/j.sysarc.2014.10.001
fatcat:kmyqpxufxrbmto3ajc2geerciq
DVSleak
2007
Proceedings of the 2007 ACM SIGPLAN/SIGBED conference on Languages, compilers, and tools - LCTES '07
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We develop a novel combined leakage and DVS scheduling algorithm for real-time systems, DVSleak, based on earliestdeadline-first scheduling (EDF). ...
This makes DVSleak the best combined DVS/leakage regulation approach for real-time systems that we know of. ...
Their approach is based on fixed-priority scheduling while ours is based on dynamic priority EDF scheduling. ...
doi:10.1145/1254766.1254772
dblp:conf/lctrts/ZhuM07
fatcat:xzpcnqbj35ajjeeszhstlbf4te
Fixed-priority scheduling to reduce both the dynamic and leakage energy on variable voltage processors
2009
International Journal of Embedded Systems
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In this paper, we propose a DVS scheduling technique for fixed-priority hard realtime systems that can judiciously merge the short, scattered idle intervals into longer ones to reduce the shut-down overhead ...
With ever-scaling VLSI technology, the leakage is becoming an increasingly serious concern when addressing the power consumption problem for next-generation real-time embedded systems. ...
Quan's work is supported in part by the National Science Foundation under the CAREER Award CNS-0545913. ...
doi:10.1504/ijes.2009.027937
fatcat:jdkqpbvoi5cy3exofqptssljla
DVSleak
2007
SIGPLAN notices
Preserved Fulltext
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We develop a novel combined leakage and DVS scheduling algorithm for real-time systems, DVSleak, based on earliestdeadline-first scheduling (EDF). ...
This makes DVSleak the best combined DVS/leakage regulation approach for real-time systems that we know of. ...
Their approach is based on fixed-priority scheduling while ours is based on dynamic priority EDF scheduling. ...
doi:10.1145/1273444.1254772
fatcat:7janzocg3zcvhovmr47pyj4phq
Online intra-task device scheduling for hard real-time systems
2012
7th IEEE International Symposium on Industrial Embedded Systems (SIES'12)
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While I/O device scheduling has been studied in the past for real-time systems, the use of energy resources by these scheduling algorithms may be improved. ...
We propose an intra-task device scheduling algorithm for real time systems that allows to shut-down devices while ensuring system schedulability. ...
Our algorithm explores online intra-task device scheduling in a hard-real time systems setting, based on a sporadic task model. ...
doi:10.1109/sies.2012.6356569
dblp:conf/sies/AwanP12
fatcat:d5jo5uzmnbfgtil5d3j42kbloy
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