J. Chase

Publications187
h-index50
Citations12,289
Highly Influential Citations738
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GENI: A federated testbed for innovative network experiments
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Making Scheduling "Cool": Temperature-Aware Workload Placement in Data Centers
TLDR
This paper examines a theoretic thermodynamic formulation that uses information about steady state hot spots and cold spots in the data center and develops real-world scheduling algorithms, and develops an alternate approach to address the problem of heat management through temperature-aware workload placement.
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Managing energy and server resources in hosting centers
TLDR
Experimental results from a prototype confirm that the system adapts to offered load and resource availability, and can reduce server energy usage by 29% or more for a typical Web workload.
View on ACM
Correlating Instrumentation Data to System States: A Building Block for Automated Diagnosis and Control
TLDR
Experimental results from a testbed show that TAN models involving small subsets of metrics capture patterns of performance behavior in a way that is accurate and yields insights into the causes of observed performance effects.
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Balancing risk and reward in a market-based task service
TLDR
This work presents improved heuristics for value-based task scheduling using a simple but rich formulation of value, in which a task's yield decays linearly with its waiting time, and shows the importance of opportunity cost and the impact of risk due to uncertainty in the future job mix.
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Automated control for elastic storage
TLDR
This paper addresses elastic control for multi-tier application services that allocate and release resources in discrete units, such as virtual server instances of predetermined sizes, by designing and implementing a new controller for elastic storage systems.
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Automated control in cloud computing: challenges and opportunities
TLDR
This paper addresses the challenge of building an effective controller as a customer add-on outside of the cloud utility service itself, and explores proportional thresholding, a policy enhancement for feedback controllers that enables stable control across a wide range of guest cluster sizes using the coarse-grained control offered by popular virtual compute cloud services.
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Scalability and accuracy in a large-scale network emulator
TLDR
The current ModelNet prototype is able to accurately subject thousands of instances of a distrbuted application to Internet-like conditions with gigabits of bisection bandwidth, including novel techniques to balance emulation accuracy against scalability.
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Interposed proportional sharing for a storage service utility
TLDR
Interposed request scheduling is non-intrusive and views the server as a black box, so it is useful for complex services with no internal support for differentiated service quality, such as network storage servers.
View on ACM
Scalability and accuracy in a large-scale network emulator
TLDR
The current ModelNet prototype is able to accurately subject thousands of instances of a distrbuted application to Internet-like conditions with gigabits of bisection bandwidth, including novel techniques to balance emulation accuracy against scalability.
View on ACM
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