Adaptive performance monitoring for embedded multicore systems

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题名:	Adaptive performance monitoring for embedded multicore systems
作者:	Shih, C.-Y.,?Li, M.-C.,?Lin, C.-S.,?Hsiung, P.-A.?,?Chang, C.-H.,?Chu, W.C.,?Hsueh, N.-L.,?Shih, C.,?Yang, C.-T.,?Koong, C.-S.
贡献者:	Dept. of Computer Science, Tunghai University,
关键词:	Embedded multicore system;IO/CPU-bound task;Monitor accuracy;Monitor immediacy;Monitor overhead
日期:	2011-09-13
上传时间:	2013-05-15T09:10:41Z (UTC)
出版者:	Taipei City; Taiwan
摘要:	With the advent of multicore processors, the performance of software has been elevated to new unforeseen heights via parallelization. However, this has not been achieved without new problems cropping up due to parallelization. One serious issue is the performance bottleneck due to cache misses or resource starvation, which is hard to detect in application software especially when the software has dynamically changing behavior. Performance monitors are usually employed for such purposes. Nevertheless, monitors have introduced their own computation and communication overheads, especially in embedded multicore systems. In this work, we try to estimate the effects of monitor overheads on different types of applications, such as CPU-bound and IO-bound tasks. Further, we give suggestions on the number and type of monitors to use for such embedded multicore applications. Besides trying to reduce monitor overheads, we also aim for the accuracy and the immediacy of the monitored information. Through a real-world example, namely digital video recording system, we demonstrate how different monitoring periods affect the tradeoff between accuracy and immediacy of the monitored information. ? 2011 IEEE.
關聯:	Proceedings of the International Conference on Parallel Processing Workshops , art. no. 6047296 , pp. 222-228
显示于类别:	[資訊工程學系所] 會議論文

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