NDLI: Restrained utilization of idleness for transparent scheduling of background tasks (2009)

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Restrained utilization of idleness for transparent scheduling of background tasks (2009)

Content Provider	CiteSeerX
Author	Mi, Ningfang Smirni, Evgenia Riska, Alma Riedel, Erik Li, Xin
Description	A common practice in system design is to treat features intended to enhance performance and reliability as low priority tasks by scheduling them during idle periods, with the goal to keep these features transparent to the user. In this paper, we present an algorithmic framework that determines the schedulability of non-preemptable low priority tasks in storage systems. The framework estimates when and for how long idle times can be utilized by low priority background tasks, without violating pre-defined performance targets of user foreground tasks. The estimation is based on monitored system information that includes the histogram of idle times. This histogram captures accurately important statistical characteristics of the complex demands of the foreground activity. The robustness and the effectiveness of the proposed framework is corroborated via extensive trace driven simulations under a wide range of system conditions and background activities, and via experimentation on a Linux kernel 2.6.22 prototype.
File Format	PDF
Language	English
Publisher Date	2009-01-01
Publisher Institution	In Proceedings of the joint ACM SIGMETRICS/Performance’09 conference
Access Restriction	Open
Subject Keyword	Framework Estimate Extensive Trace Idle Time Pre-defined Performance Target Common Practice Background Activity Complex Demand Storage System User Foreground Task Algorithmic Framework Long Idle Time Linux Kernel Important Statistical Characteristic Low Priority Background Task Idle Period System Design Non-preemptable Low Priority Task Background Task System Condition Wide Range Low Priority Task Foreground Activity Transparent Scheduling Monitored System Information
Content Type	Text
Resource Type	Article

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