NDLI: Programmable temporal isolation through variable-bandwidth servers

Content Provider	IEEE Xplore Digital Library
Author	Craciunas, S.S. Kirsch, C.M. Payer, H. Rock, H. Sokolova, A.
Copyright Year	2009
Description	Author affiliation: Department of Computer Sciences, University of Salzburg, Austria (Craciunas, S.S.; Kirsch, C.M.; Payer, H.; Rock, H.; Sokolova, A.)
Abstract	We introduce variable-bandwidth servers (VBS) for scheduling and executing processes under programmable temporal isolation. A VBS is an extension of a constant-bandwidth server where throughput and latency of process execution can not only be controlled to remain constant across different competing workloads but also to vary in time as long as the resulting bandwidth stays below a given bandwidth cap. We have designed and implemented a VBS-based EDF-style constant-time scheduling algorithm, a constant-time admission test, and four alternative queue management plugins which influence the scheduling algorithm's overall temporal and spatial complexity. Experiments confirm the theoretical bounds in a number of microbenchmarks and demonstrate that the scheduler can effectively manage in constant time any number of processes up to available memory while maintaining response times of individual processes within a bounded range. We have also developed a small-footprint, bare-metal virtual machine that uses VBS for temporal isolation of multiple, concurrently running processes executing real code.
Starting Page	171
Ending Page	180
File Size	1904992
Page Count	10
File Format	PDF
ISBN	9781424441099
DOI	10.1109/SIES.2009.5196213
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-08
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Bandwidth Resource virtualization Sampling methods Frequency Switches Job shop scheduling Scheduling algorithm Hardware Application software
Content Type	Text
Resource Type	Article

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