SIGBED Rev.最新文献_第5页

A runtime controller for openCL applications on heterogeneous system architectures 异构系统架构上的openCL应用程序的运行时控制器

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199614

C. Bolchini, Stefano Cherubin, Gianluca Durelli, Simone Libutti, A. Miele, M. Santambrogio

引用次数: 15

Enabling power-awareness for the Xen hypervisor 为Xen管理程序启用电源感知功能

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199615

M. Ferroni, Juan A. Colmenares, S. Hofmeyr, J. Kubiatowicz, M. Santambrogio

引用次数: 8

A survey on shared disk I/O management in virtualized environments under real time constraints 实时约束下虚拟化环境中共享磁盘I/O管理的研究

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199618

Ignacio Sañudo Olmedo, R. Cavicchioli, Nicola Capodieci, P. Valente, M. Bertogna

{"title":"A survey on shared disk I/O management in virtualized environments under real time constraints","authors":"Ignacio Sañudo Olmedo, R. Cavicchioli, Nicola Capodieci, P. Valente, M. Bertogna","doi":"10.1145/3199610.3199618","DOIUrl":"https://doi.org/10.1145/3199610.3199618","url":null,"abstract":"In the embedded systems domain, hypervisors are increasingly being adopted to guarantee timing isolation and appropriate hardware resource sharing among different software components. However, managing concurrent and parallel requests to shared hardware resources in a predictable way still represents an open issue. We argue that hypervisors can be an effective means to achieve an efficient and predictable arbitration of competing requests to shared devices in order to satisfy real-time requirements. As a representative example, we consider the case for mass storage (I/O) devices like Hard Disk Drives (HDD) and Solid State Disks (SSD), whose access times are orders of magnitude higher than those of central memory and CPU caches, therefore having a greater impact on overall task delays. We provide a comprehensive and up-to-date survey of the literature on I/O management within virtualized environments, focusing on software solutions proposed in the open source community, and discussing their main limitations in terms of realtime performance. Then, we discuss how the research in this subject may evolve in the future, highlighting the importance of techniques that are focused on scheduling not uniquely the processing bandwidth, but also the access to other important shared resources, like I/O devices.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132541517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Towards architectural support for bandwidth management in mixed-critical embedded systems 对混合关键嵌入式系统中带宽管理的架构支持

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177807

I. Christoforakis, M. Astrinaki, Georgios Kornaros

{"title":"Towards architectural support for bandwidth management in mixed-critical embedded systems","authors":"I. Christoforakis, M. Astrinaki, Georgios Kornaros","doi":"10.1145/3177803.3177807","DOIUrl":"https://doi.org/10.1145/3177803.3177807","url":null,"abstract":"Mixed-critical platforms require an on-chip interconnect and a memory controller capable of providing sufficient timing independence for critical applications. Existing real-time memory controllers, however, either do not support mixed criticality or still fail to ensure negligible allow a certain degree of interference between applications.\u0000 On the other hand, Networks-on-Chip manage the traffic injection rate mainly by employing complex techniques; either back-pressure based flow-control mechanisms or rate-control of traffic load (i.e. traffic shaping). This work proposes such a Traffic Shaper Module that supports both monitoring and traffic control at the on-chip network interface or the memory controller.\u0000 The advantage of this Traffic Shaper Module is that at system level it provides guaranteed memory bandwidth to the critical applications by limiting traffic of non-critical tasks.\u0000 The system is developed in the Xilinx ZYNQ7000 System-on-Chip while the measurements were captured on a Zed-board development board. By enabling the Traffic Shaper in our architecture we achieved fine-grain bandwidth control with negligible overhead, while providing bandwidth of only 0.5-5 percent less than the theoretical specified bandwidth.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125501425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DTFM: a flexible model for schedulability analysis of real-time applications on NoC-based architectures DTFM:一个灵活的模型，用于分析基于noc架构的实时应用程序的可调度性

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177812

Mourad Dridi, S. Rubini, Frank Singhoff, J. Diguet

{"title":"DTFM: a flexible model for schedulability analysis of real-time applications on NoC-based architectures","authors":"Mourad Dridi, S. Rubini, Frank Singhoff, J. Diguet","doi":"10.1145/3177803.3177812","DOIUrl":"https://doi.org/10.1145/3177803.3177812","url":null,"abstract":"Many-core processors are expected to be hardware targets to support the execution of real-time applications. In a many-core processor, cores communicate through a Network-On-Chip (NoC), which offers high bandwidth and scalability, but also introduces contentions leading to additional variability to task execution times. Such contentions also strongly increase the pessimistic trend of worst case execution time estimation. Consequently, modeling and analysis of network contentions interferences on many-core processors is a challenge to support real-time applications. In this article, we formalize a dual task and flow model called DTFM. From the specification of a real-time application composed of a set of tasks and their communication dependencies, DTFM allows us to compute flow requirements and to assess predictability of the tasks. DTFM is extensible enough to be adapted to various NoCs and task models, allowing designers to compare candidate software and NoC architectures. Furthermore, we introduce an original validation approach based on the cross-use of a task level real-time scheduling analysis tool and a cycle-accurate SystemC NoC simulator.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128110333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Using DDS middleware in distributed partitioned systems 在分布式分区系统中使用DDS中间件

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177806

M. García-Valls, Jorge Domínguez-Poblete, Imad Eddine Touahria

{"title":"Using DDS middleware in distributed partitioned systems","authors":"M. García-Valls, Jorge Domínguez-Poblete, Imad Eddine Touahria","doi":"10.1145/3177803.3177806","DOIUrl":"https://doi.org/10.1145/3177803.3177806","url":null,"abstract":"Communication middleware technologies are slowly being integrated also into critical domains that are also progresively transitioning to partitioned systems. Especially, avionics systems have transitioned from federated architectures to IMA (Integrated Modular Avionics) standard that targets partitioned systems to comply with the requirements of cost, safety, and weight. In the future developments, it is fully considered the integration of middleware to support data communication and application interoperability. As specified in FACE (Future Airborne Capability Environment), middleware will be integrated into mixed criticality systems to ease the development of portable components that can interoperate effectively. Still nowadays, in realtime environments, communication middleware is perceived as a source of unpredictability; and still there are very few contributions that present real applications of the integration of communication middleware into partitioned systems to support distribution.\u0000 This paper describes the usage of a publish-subscribe middleware (precisely, DDS -Data Distribution Service for real-time systems-) into a fully distributed partitioned system. We explain the design of a reliable communication setting enabled by the middleware, and we exemplify it using a distributed monitoring application for an emulated partitioned system with the goal of obtaining the middleware communication overhead. Implementation results show stable communication times that can be integrated in the resource assignment to partitions.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123429498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Go-realtime: a lightweight framework for multiprocessor real-time system in user space Go-realtime:用于用户空间多处理器实时系统的轻量级框架

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177811

Zhou Fang, Mulong Luo, F. Anwar, Hao Zhuang, Rajesh K. Gupta

引用次数: 2

Analyzing end-to-end delays in automotive systems at various levels of timing information 在不同级别的定时信息下分析汽车系统的端到端延迟

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177805

Matthias Becker, D. Dasari, S. Mubeen, M. Behnam, Thomas Nolte

引用次数: 18

Programming support for time-sensitive adaptation in cyberphysical systems 网络物理系统中时间敏感适应的编程支持

SIGBED Rev. Pub Date : 2018-01-04 DOI: 10.1145/3177803.3177808

Mikhail Afanasov, Aleksandr Iavorskii, L. Mottola