TAILIEUCHUNG - Gini in a bottle: A case study of pareto’s principle in the wild

This paper presents a case study of socio-economic disparities – human factors – having tremendous impact on the performance and behavior of a cloud-based software system. Failures to take such factors into account lead to serious design, implementation, and operational problems. | International Journal of Computer Networks and Communications Security C VOL. 1, NO. 1, JUNE 2013, 30–39 Available online at: ISSN 2308-9830 N C S Gini in A Bottle: A Case Study of Pareto’s Principle in the Wild Alex Blate1, Kevin Jeffay2 Doctoral Student, Department of Computer Science, University of North Carolina at Chapel Hill 1 2 Gillian T. Cell Distinguished Professor, Department of Computer Science, University of North Carolina at Chapel Hill E-mail: 1blate@, 2jeffay@ ABSTRACT This paper presents a case study of socio-economic disparities – human factors – having tremendous impact on the performance and behavior of a cloud-based software system. Failures to take such factors into account lead to serious design, implementation, and operational problems. A detailed empirical analysis of a commercial mobile network address book web application, serving over million subscribers, was conducted for the joint purposes of building realistic subscriber behavior and data models and to explain certain performance characteristics and expectations. Extensive analysis of anonymized production data revealed that many aspects of users' data and activity exhibited strongly-heavy-tailed characteristics, particularly characteristics affecting database performance and interactive request latencies, which could be ameliorated by traditional techniques such as caching or multi-threading. Several performance-critical aspects of users' data were found to be well-described by the Log-Normal probability distribution, were heavily-skewed to the right, and exhibited Gini coefficients consistent with income inequalities in the Western world. The analytical model was translated into enhanced simulation and performance tooling, enabling more realistic performance and capacity testing of the product. Our deeper understanding also lead to changes in monitoring and system performance evaluation and quality-of-service parameters, statements of .

• Vật lý
• International Journal of Computer Science & Communication Networks
• Gini in a bottle
• Pareto’s principle in the wild
• Cloud based software system
• Socio economic disparities – human factor
• Distributed security system for mobile ad hoc computer networks
• Distributed security system
• Ad hoc computer networks
• The Blackhole attack
• Interactive multicast framework between wireless mesh networks and internet
• Interactive multicast framework
• Wireless mesh networks and internet
• The two networks
• Wireless mesh networks
• International Journal of Computer Science and Communication Networks
• Regeneration of ZVS converter with resonant inductor
• ZVS converter with resonant inductor
• Linear resonant inductor
• The design of a clamping circuit
• Multilayer coding mechanisms for broadcasting over mimo networks
• Multilayer coding mechanisms
• Broadcasting over mimo networks
• MultipleInput Multiple Output
• A robusat and efficient data transmission in adhoc networks
• Efficient data transmission in adhoc networks
• Efficient data access
• Simulation results reveal
• Self directed reconfigurable ADHOC networks
• Self directed reconfigurable
• Multi hop wireless mesh networks
• Frequent link failures
• QOS aware location anonymization mechanism for wireless sensor networks
• Wireless sensor networks
• The location privacy
• Challenges and issues in wireless sensor networks
• Intelligent transportation system
• Intelligent Transportation Systems technologies
• Various energy efficeint protocols for wireless sensor networks
• Various energy efficeint protocols
• Defence state of the art evaluation occurs organisation
• Energy occupancy in wireless sensor networks
• Contemporary technology for providing energy
• Charge multiple detector nodes in wireless manner
• TDOA computation using multicarrier modulation
• Multicarrier modulation for sensor networks
• Signal to Noise
• Centralised and DeCentralised methods
• OFDM for Sensor Networks
• The dynamic buffer sizing strategies
• 802
• 11 based wireless networks
• The bandwidth delay product
• Dynamic buffer sizing algorithms
• 11 wireless networks
• Attacks in mobile adhoc networks
• Various types of attacks in MANETs
• The network performance
• Mobile Ad hoc Networks
• Communication Approach towards domain name system for improving security
• Approach towards domain name system
• Domain name system
• TCP based rather than UDP
• Developments in indoor optical fiber wireless networks
• Cost effective indoor optical wireless systems
• Future high performance
• Types of Optical Wireless links
• Performance analysis of ARQ mechanism in wimax networks
• Performance analysis of ARQ mechanism
• Metrics like throughput
• Delay and jitter
• Performance study of bandwidth request mechanisms
• IEEE 802
• 16e networks
• Quality of service
• Bandwidth request grant scheme
• Medium access control
• Energy aware routing protocol
• Delay sensitive applications
• Energy Aware DSR
• EADSR protocol out performs DSR protoco
• Adapting sip protocol to Ad hoc networks
• Virtual Network for SIP
• Illustration and evaluation of performance
• Efficient cross layer congestion control adaptive routing protocol
• Adaptive routing protocol
• Mobile ad hoc networks in constrained environment
• Dynamic packet reservation multiple access protocol
• Speech transmission wireless adhoc networks
• The PRMA protocol for digital speech transmission
• Modeling protein interaction networks
• Monotonic answer set programming
• Describe a particular case
• General LASP frame work
• Supporting efficient and dynamic multicasting
• Multiple regions in mobile ad hoc networks
• Multiple regions in mobile
• Novel Efficient Geographic Multicast Protocol
• A survey on routing protocols
• Underwater sensor networks
• Entire underwater wireless sensor network
• High bit error rates
• Limited band width
• Oil well monitoring and control
• Wireless sensor networks using atmega 2560 controller
• Atmega 2560 controller
• Manual control system