PPT-Concurrency

Author : tawny-fly | Published Date : 2016-03-06

What is it What is concurrency Concurrency is not a new idea Concurrency was first developed by the ancient Babylonians They thought about stuff walked and chewed

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Concurrency: Transcript

What is it What is concurrency Concurrency is not a new idea Concurrency was first developed by the ancient Babylonians They thought about stuff walked and chewed gum all at the same time. This motivated an ongoing shared effort by the standards committees to specify concurrent behaviour in the next versions of both languages They aim to provide strong guarantees for racefree programs together with new but subtle relaxedmemory atomic Slide . 1. Too Much Milk. . Roommate . A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . Seminar: Transaction Processing (Bachelor). SS 2009. Dennis . Stratmann. Outline. Goal and Overview. Examine Three Approaches to CC on RD:. 1. Predicate-Oriented Concurrency Control. 2. Relational Update Transactions. Motivation, Problems, Directions. Dennis Kafura - CS 5204 - Operating Systems. 1. Dennis Kafura - CS 5204 - Operating Systems. 2. Reasons for Concurrency. multitasking. parallelism. performance. coordination. concurrency. . controll. Chapter. 13. “Distributed Systems: . Concepts and Design”. Coulouris. , . Dollimore. , Kindberg. Hanna. Björling, . Stina Fröjd & Liv Sundman. Transaction. A transaction is a point where there is interaction with the database.  Rick Molloy. . Program Manager. Microsoft Corporation. TL25. Motivation and Hard Problems. Comprehensive Solutions. Native Concurrency Platform in Visual Studio 2010. Concurrency Runtime. Parallel Pattern Library. Ganesh. Why CPS is important. Tomorrow’s massively complex digital systems won’t “just work”. Their correctness is a multi-faceted issue. Concurrency problems are largely responsible for the sheer complexity (. Concurrency Topics. 1. Sequential programming notation. 2. Expressing concurrency with . co. and . process. . 3. States and hardware. 4. Atomic actions. 5. Inter-leavings and histories. 6. The finite progress assumption. Paolo . Baldan. . and. Silvia . Crafa. Universita. ’ . di. . Padova. Models of Concurrency. a | b = . a.b. + . b.a. a. a. b. b. Different . causal. properties. Different . distribution. properties. Database System Implementation CSE 507. Some slides adapted from . Navathe. et. Al. , . Silberchatz. et. Al and . Hector Garcia-Molina . Lock Based Protocols. A lock is a mechanism to control concurrent access to a data item. Dennis Kafura - CS 5204 - Operating Systems. 1. Dennis Kafura - CS 5204 - Operating Systems. 2. Reasons for Concurrency. multitasking. parallelism. performance. coordination. Moore’s Law. Dennis Kafura - CS 5204 - Operating Systems. Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . Software & the Concurrency Revolution by Sutter & Larus ACM Queue Magazine, Sept. 2005 For CMPS 5433 - Halverson 1 In a Nutshell “The concurrency revolution is primarily a software revolution

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