Causality: models, reasoning, and inference
Causality: models, reasoning, and inference
Modeling TCP Reno performance: a simple model and its empirical validation
IEEE/ACM Transactions on Networking (TON)
Data Mining and Knowledge Discovery
On the predictability of large transfer TCP throughput
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Shrink: a tool for failure diagnosis in IP networks
Proceedings of the 2005 ACM SIGCOMM workshop on Mining network data
Interpreting the data: Parallel analysis with Sawzall
Scientific Programming - Dynamic Grids and Worldwide Computing
Predicting short-transfer latency from TCP arcana: a trace-based validation
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
Democratizing content publication with coral
NSDI'04 Proceedings of the 1st conference on Symposium on Networked Systems Design and Implementation - Volume 1
IP fault localization via risk modeling
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
MapReduce: simplified data processing on large clusters
OSDI'04 Proceedings of the 6th conference on Symposium on Opearting Systems Design & Implementation - Volume 6
A machine learning approach to TCP throughput prediction
Proceedings of the 2007 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Network-wide prediction of BGP routes
IEEE/ACM Transactions on Networking (TON)
Towards highly reliable enterprise network services via inference of multi-level dependencies
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Towards automated performance diagnosis in a large IPTV network
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Moving beyond end-to-end path information to optimize CDN performance
Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference
Detecting network neutrality violations with causal inference
Proceedings of the 5th international conference on Emerging networking experiments and technologies
Automated debugging of SLO violations in enterprise systems
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
Detecting the performance impact of upgrades in large operational networks
Proceedings of the ACM SIGCOMM 2010 conference
WebProphet: automating performance prediction for web services
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
What happened in my network: mining network events from router syslogs
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
Measuring and evaluating TCP splitting for cloud services
PAM'10 Proceedings of the 11th international conference on Passive and active measurement
On name-based inter-domain routing
Computer Networks: The International Journal of Computer and Telecommunications Networking
Profiling network performance for multi-tier data center applications
Proceedings of the 8th USENIX conference on Networked systems design and implementation
Analyzing IPTV set-top box crashes
Proceedings of the 2nd ACM SIGCOMM workshop on Home networks
Q-score: proactive service quality assessment in a large IPTV system
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Characterizing roles of front-end servers in end-to-end performance of dynamic content distribution
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Rapid detection of maintenance induced changes in service performance
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
If-what analysis for data center transformations
Proceedings of the Workshop on Posters and Demos Track
A practical solution to the client-LDNS mismatch problem
ACM SIGCOMM Computer Communication Review
Predico: a system for what-if analysis in complex data center applications
Middleware'11 Proceedings of the 12th ACM/IFIP/USENIX international conference on Middleware
Structured comparative analysis of systems logs to diagnose performance problems
NSDI'12 Proceedings of the 9th USENIX conference on Networked Systems Design and Implementation
NetPilot: automating datacenter network failure mitigation
Proceedings of the ACM SIGCOMM 2012 conference on Applications, technologies, architectures, and protocols for computer communication
NetPilot: automating datacenter network failure mitigation
ACM SIGCOMM Computer Communication Review - Special october issue SIGCOMM '12
Enabling content-aware traffic engineering
ACM SIGCOMM Computer Communication Review
Predico: a system for what-if analysis in complex data center applications
Proceedings of the 12th International Middleware Conference
ACM SIGCOMM Computer Communication Review
Internet on the move: challenges and solutions
ACM SIGCOMM Computer Communication Review
Quantifying the benefits of joint content and network routing
Proceedings of the ACM SIGMETRICS/international conference on Measurement and modeling of computer systems
Analytical modeling for what-if analysis in complex cloud computing applications
ACM SIGMETRICS Performance Evaluation Review
Pushing CDN-ISP collaboration to the limit
ACM SIGCOMM Computer Communication Review
Answering: techniques and deployment experience
IEEE/ACM Transactions on Networking (TON)
Exploring EDNS-client-subnet adopters in your free time
Proceedings of the 2013 conference on Internet measurement conference
Mantis: automatic performance prediction for smartphone applications
USENIX ATC'13 Proceedings of the 2013 USENIX conference on Annual Technical Conference
Energy-efficient mobile web in a bundle
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Designers of content distribution networks often need to determine how changes to infrastructure deployment and configuration affect service response times when they deploy a new data center, change ISP peering, or change the mapping of clients to servers. Today, the designers use coarse, back-of-the-envelope calculations, or costly field deployments; they need better ways to evaluate the effects of such hypothetical "what-if" questions before the actual deployments. This paper presents What-If Scenario Evaluator (WISE), a tool that predicts the effects of possible configuration and deployment changes in content distribution networks. WISE makes three contributions: (1) an algorithm that uses traces from existing deployments to learn causality among factors that affect service response-time distributions; (2) an algorithm that uses the learned causal structure to estimate a dataset that is representative of the hypothetical scenario that a designer may wish to evaluate, and uses these datasets to predict future response-time distributions; (3) a scenario specification language that allows a network designer to easily express hypothetical deployment scenarios without being cognizant of the dependencies between variables that affect service response times. Our evaluation, both in a controlled setting and in a real-world field deployment at a large, global CDN, shows that WISE can quickly and accurately predict service response-time distributions for many practical What-If scenarios.