Memory optimization techniques for multithreaded operating system on wireless sensor nodes

Xing, Liudong; Hou, Kun Mean; Vaulx, Christophe de; Zhu, Hailun; Lui, Xin

doi:10.1109/pic.2014.6972386

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…In recent years, the research area focus has been changed from OSs overall performance improvements to more limited scopes. Research presented in [104] describes a set of memory optimization techniques for multithread OSs. Despite the results shown in the manuscript, this solution has its target in a wireless sensor nodes context.…”

Section: Related Workmentioning

confidence: 99%

Software and Hardware Requirements and Trade-Offs in Operating Systems for Wearables: A Tool to Improve Devices’ Performance

Amorim

Silva

Oliveira

2019

Sensors

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Wearable device requirements currently vary from soft to hard real-time constraints. Frequently, hardware improvements are a way to speed-up the global performance of a solution. However, changing some parts or the whole hardware may increase device complexity, raising the costs and leading to development delays of products or research prototypes. This paper focuses on software improvements, presenting a tool designed to create different versions of operating systems (OSs) fitting the specifications of wearable devices projects. Authors have developed a software tool allowing the end-user to craft a new OS in just a few steps. In order to validate the generated OS, an original wearable prototype for mining environments is outlined. Resulting data presented here allows for measuring the actual impact an OS has in different variables of a solution. Finally, the analysis also allows for evaluating the performance impact associated with each hardware part. Results suggest the viability of using the proposed solution when searching for performance improvements on wearables.

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Section: Related Workmentioning

confidence: 99%

Software and Hardware Requirements and Trade-Offs in Operating Systems for Wearables: A Tool to Improve Devices’ Performance

Amorim

Silva

Oliveira

2019

Sensors

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“…Mixed strategies could be used as FreeRTOS does, where roundrobin schedule is applied for same-priority tasks. However, for these OSes the main drawback is RAM usage, so several memory optimization techniques are presented by authors [4] to reduce it. Both thread optimization and memory allocation techniques could be useful for multithread RTOS.…”

Section: Related Workmentioning

confidence: 99%

An Adaptive Scheduler for Real‐Time Operating Systems to Extend WSN Nodes Lifetime

Rodriguez-Zurrunero

Utrilla

Romero

et al. 2018

Wireless Communications and Mobile Computing

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Wireless Sensor Networks (WSNs) are a growing research area as a large of number portable devices are being developed. This fact makes operating systems (OS) useful to homogenize the development of these devices, to reduce design times, and to provide tools for developing complex applications. This work presents an operating system scheduler for resource-constraint wireless devices, which adapts the tasks scheduling in changing environments. The proposed adaptive scheduler allows dynamically delaying the execution of low priority tasks while maintaining real-time capabilities on high priority ones. Therefore, the scheduler is useful in nodes with rechargeable batteries, as it reduces its energy consumption when battery level is low, by delaying the least critical tasks. The adaptive scheduler has been implemented and tested in real nodes, and the results show that the nodes lifetime could be increased up to 70% in some scenarios at the expense of increasing latency of low priority tasks.

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Improving concurrency and memory usage in distributed operating systems for lightweight manycores via cooperative time-sharing lightweight tasks

Souto

Castro

2023

Journal of Parallel and Distributed Computing

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Memory optimization techniques for multithreaded operating system on wireless sensor nodes

Cited by 5 publications

References 17 publications

Software and Hardware Requirements and Trade-Offs in Operating Systems for Wearables: A Tool to Improve Devices’ Performance

Software and Hardware Requirements and Trade-Offs in Operating Systems for Wearables: A Tool to Improve Devices’ Performance

An Adaptive Scheduler for Real‐Time Operating Systems to Extend WSN Nodes Lifetime

Improving concurrency and memory usage in distributed operating systems for lightweight manycores via cooperative time-sharing lightweight tasks

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