End-to-End Utilization Control for Aperiodic Tasks in Distributed Real-Time Systems

来源 :计算机科学技术学报(英文版) | 被引量 : 0次 | 上传用户:sjtshuaige
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
An increasing number of DRTS (Distributed Real-Time Systems) are employing an end-to-end aperiodic task model.The key challenges of such DRTS are guaranteeing utilization on multiple processors to achieve overload protection,and meeting the end-to-end deadlines of aperiodic tasks.This paper proposes an end-to-end utilization control architecture and an IC-EAT (Integration Control for End-to-End Aperiodic Tasks) algorithm, which features a distributed feedback loop that dynamically enforces the desired utilization bound on multiple processors.IC-EAT integrates admission control with feedback control, which is able to dynamically determine the QoS (Quality of Service) of incoming tasks and guarantee the end-to-end deadlines of admitted tasks.Then an LQOCM (Linear Quadratic Optimal Control Model) is presented.Finally,experiments demonstrate that, for the end-to-end DRTS whose control matrix G falls into the stable region, the IC-EAT is convergent and stable.Moreover, it is capable of providing better QoS guarantees for end-to-end aperiodic tasks and improving the system throughput.
其他文献
期刊
Due to the personal portable devices and advances in wireless communication technologies, Location Dependent Information Services (LDISs) have received a lot of
期刊
一、网络社区介绍所谓网络社区,是集中的在线交流场所。这种交流一般在聊天室、BBS、即时信息交流平台上进行,也就是通常说的网上聊天、泡坛子,可能每一位上过网的朋友都有过这
本文对一致式的概念和近期研究成果进行了归纳和总结 ,并在此基础上提出了辨别是否一致式的可操作性和简约化的标准。作者认为 ,区分是否一致式的目的在于阐释语篇的语义内涵
目的研究UPR关键基因在氟他胺致小鼠隐睾中的表达情况。方法 ICR小鼠受孕后,将其随机分为实验和对照组,实验组和对照组各10只,于孕11d(gestational day 11,GD11)~GD18,每天经
摘 要:家庭教育和社会教育、学校教育一起,组成了人们日常生活中所受到的教育的全部。中国和日本是邻国,而且有着很深的历史渊源,两个国家在家庭教育中有很多相似之处,这和两个国家的发展历史有很大的关系。但是中日两国的教育观念更多的是表现在它们的差异上,这同样也是两个国家不同的历史发展轨道所决定的。  关键词:家庭教育观念;中日差异;模式化;创新和发展  中日两个国家的家庭教育观念有很大的差异,这些差异由