Encontrados 6 documentos, a visualizar página 1 de 1
Energy-conscious tasks partitioning onto a heterogeneous multi-core platform
Awan, Muhammad Ali; Petters, Stefan M.Modern multicore processors for the embedded market are often heterogeneous in nature. One feature often available are multiple sleep states with varying transition cost for entering and leaving said sleep states. This research effort explores the energy efficient task-mapping on such a heterogeneous multicore platform to reduce overall energy consumption of the system. This is performed in the context of a par...
Device power management for real-time embedded systems
Awan, Muhammad Ali; Petters, Stefan M.A large part of power dissipation in a system is generated by I/O devices. Increasingly these devices provide power saving mechanisms to inter alia enhance battery life. While I/O device scheduling has been studied in the past for realtime systems, the use of energy resources by these scheduling algorithms may be improved. These approaches are crafted considering a huge overhead of device transition. The techno...
Online intra-task device scheduling for hard real-time systems
Awan, Muhammad Ali; Petters, Stefan M.A large part of power dissipation in a system is generated by I/O devices. Increasingly these devices provide power saving mechanisms, inter alia to enhance battery life. While I/O device scheduling has been studied in the past for realtime systems, the use of energy resources by these scheduling algorithms may be improved. These approaches are crafted considering a very large overhead of device transitions. Te...
Comparing the schedulers and power saving strategies with SPARTS
Awan, Muhammad Ali; Nikolic, Borislav; Petters, Stefan M.We have developed SPARTS, a simulator of a generic embedded real-time device. It is designed to be extensible to accommodate different task properties, scheduling algorithms and/or hardware models for the wide variety of applications. SPARTS was developed to help the community investigate the behaviour of the real-time embedded systems and to quantify the associated constraints/overheads.
The roman conquered by delay: reducing the number of preemptions using sleep st...
Awan, Muhammad Ali; Petters, Stefan M.Sleep-states are emerging as a first-class design choice in energy minimization. A side effect of this is that the release behavior of the system is affected and subsequently the preemption relations between tasks. In a first step we have investigated how the behavior in terms of number of preemptions of tasks in the system is changed at runtime, using an existing procrastination approach, which utilizes sleeps...
Slow down or race to halt: towards managing complexity of real-time energy mana...
Petters, Stefan M.; Awan, Muhammad AliExisting work in the context of energy management for real-time systems often ignores the substantial cost of making DVFS and sleep state decisions in terms of time and energy and/or assume very simple models. Within this paper we attempt to explore the parameter space for such decisions and possible constraints faced.
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