NDLI: Response Time versus Utilization in Scheduler Overhead Accounting

Content Provider	IEEE Xplore Digital Library
Author	Craciunas, S.S. Kirsch, C.M. Sokolova, A.
Copyright Year	2010
Abstract	We propose two complementary methods to account for scheduler overhead in the schedulability analysis of Variable Bandwidth Servers (VBS), which control process execution speed by allocating variable CPU bandwidth to processes. Scheduler overhead in VBS may be accounted for either by decreasing process execution speed to maintain CPU utilization (called response accounting), or by increasing CPU utilization to maintain process execution speed (called utilization accounting). Both methods can be combined by handling an arbitrary fraction of the total scheduler overhead with one method and the rest with the other. Distinguishing scheduler overhead due to releasing and due to suspending processes allows us to further improve our analysis by accounting for releasing overhead in a separate, virtual VBS process. Although our analysis is based on the VBS model, the general idea of response and utilization accounting may also be applied to other, related scheduling methods.
Starting Page	291
Ending Page	300
File Size	369241
Page Count	10
File Format	PDF
ISBN	9781424466900
ISSN	10801812
e-ISBN	9781424466917
DOI	10.1109/RTAS.2010.14
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-12
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Embedded computing Network servers Upper bound Processor scheduling Embedded system Process control Bandwidth Jitter Scheduling Application software Delay
Content Type	Text
Resource Type	Article

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