PPT-Techniques for Finding Scalability Bugs

Bowen Zhou Overview Find scaling bugs using WuKong Generate scaling test inputs using Lancet 2 Overview Find scaling bugs using WuKong Generate scaling test inputs using Lancet 3 A Real Bug in MPI. Bad bugs are thought to bring diseas e and destruction layi ng eggs by the dozens and sucking the life out of plants Good bugs on the other hand marc h to the rescue and chow down on the bad guys But ants and earwigs like many insects have dual rol The Pennsylvania State University. Housing . Services. Everett . Jan Mason. IN THIS SESSION WE WILL DISCUSS…. Brief History & Nature of the Bed Bug. How to Identify the Signs of an Infestation. Symbolic Execution. & Constraint Solving. CS161 Computer . Security . Cho. , Chia Yuan. Lab. Q1: Manual reasoning on code. Mergesort. implementation published in . Wikibooks. R. Jhala . [C. Killian, J. Anderson , A. Vahdat]. UC San Diego. Concurrent, Distributed Systems. Stock Exchanges . Telecoms. Commuter Rail. Concurrent, Distributed Systems. System. . Nodes exchanging Messages . Ippokratis Pandis. CIDR 2009 - Gong Show. Scalability on CMP. 2. Sun Niagara I - 32 HW Contexts. Update intensive workload. No database lock conflicts. Linear (ideal) scaling. Scalability. problems. Los Angeles County Department of Public Health .  . March,. . 2011. Presentation Overview. What’s a bed bug?. Why are bed bugs a public health problem? . Where do bed bugs live?. How do you know if you’ve got bed bugs?. Symbolic Execution. & Constraint Solving. CS161 Computer . Security . Cho. , Chia Yuan. Lab. Q1: Manual reasoning on code. Mergesort. implementation published in . Wikibooks. University. MW 11:00am-12:20pm. Control-Plane Scalability. COS 597E: Software Defined Networking. Controller Scalability Challenges. Number of switches. Number of control sessions. Frequency of events. Andrew A. Chien. William Eckhardt Professor of Computer Science, The University of Chicago. Senior Scientist, Argonne National Laboratory. IRIS-HEP Kickoff. September 7, 2018. Traditional Software Scalability. since they can resemble bites caused by many other kinds of blood feeding insects, such as mosquitoes and �eas. Cind the insects and iden�fy them, either using the descript 6-. 2. Objectives. Define system requirements and differentiate between functional and nonfunctional requirements. . Understand the activity of problem analysis and be able to create an Ishikawa (fishbone) diagram. . S.H. . Yeganeh. , A. . Tootoonchian. , Y. . Ganjali. University of . Tronto. IEEE Communication Magazine. 1. Motivations. There have always been concerns about performance and scalability about SDN. Argue that there is no inherent bottleneck to SDN... Huawei. Liyan. Gong, . Fengwei . Qin . @China Mobile. Guangming. Yang @China Telecom. James Guichard @. Futurewei. Gyan Mishra . @Verizon. Tarek Saad @Cisco. Vishnu Beeram @Juniper. Scalability Considerations for . Performance of Computer System. Various factors. Depends on. Scalability: . Computer Performance . Number of processors used. Measuring performance of parallel computer architecture for large-scale applications require very good understanding of...