NDLI: RISO: Relaxed network-on-chip isolation for cloud processors

Content Provider	IEEE Xplore Digital Library
Author	Hang Lu Guihai Yan Yinhe Han Binzhang Fu Xiaowei Li
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Comput. Archit., Inst. of Comput. Technol., Beijing, China (Hang Lu; Guihai Yan; Yinhe Han; Binzhang Fu; Xiaowei Li)
Abstract	Cloud service providers use workload consolidation technique in many-core cloud processors to optimize system utilization and augment performance for ever extending scale-out workloads. Performance isolation usually has to be enforced for the consolidated workloads sharing the same many-core resources. Networks-on-chip (NoC) serves as a major shared resource, also needs to be isolated to avoid violating performance isolation. Prior work uses strict network isolation to fulfill performance isolation. However, strict network isolation either results in low consolidation density, or complex routing mechanisms which indicates prohibitive high hardware cost and large latency. In view of this limitation, we propose a novel NoC isolation strategy for many-core cloud processors, called relaxed isolation (RISO). It permits underutilized links to be shared by multiple applications, at the same time keeps the aggregated traffic in check to enforce performance isolation. The experimental results show that the consolidation density is improved more than 12% in comparison with previous strict isolation scheme, meanwhile reducing network latency by 38.4% on average.
Starting Page	1
Ending Page	6
File Size	885134
Page Count	6
File Format	PDF
ISBN	9781450320719
ISSN	0738100X
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Shape Topology Routing Program processors Vectors System-on-chip Network topology Relaxed Isolation Networks-on-Chip Cloud Computing Cloud Processors Workload Consolidation Performance Isolation
Content Type	Text
Resource Type	Article

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