PPT-CS 140 Lecture Notes: Concurrency

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Slide 1 Too Much Milk Person A 300 Arrive home no milk 305 Leave for store 310 Arrive at store 315 Leave store 320 Arrive home put milk away CS 140 Lecture Notes

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CS 140 Lecture Notes: Concurrency: Transcript

Slide 1 Too Much Milk Person A 300 Arrive home no milk 305 Leave for store 310 Arrive at store 315 Leave store 320 Arrive home put milk away CS 140 Lecture Notes Concurrency. ŒŽ‘ŒŽ‘Œ’Ž\fŒŽ\f\f’‡“\f”\f\b\fƒŒ 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. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System. [. R. Chow & T. Johnson, 1997. Slide . 1. Memory Layout for Process. Code. 0. ∞. Data. Stack. CS 140 Lecture Notes: Linkers. Slide . 2. Creating a Process. 101010101010101010101010101010101010101010101010. cc. x.c. x.s. as. x.o. Slide . 1. Uniprocessor . Locks. void . lock_acquire. (. struct. lock *l) {. . intr_disable. ();. if (!l->locked) {. l->locked = 1;. } else {. . queue_add. (&l->q, . Œ]ŒvŒŒ]Œ]&Œ Day Monday Notes: Tuesday Notes: Wednesday Notes: Thursday Notes: Friday Notes: Saturday Notes: Sunday Notes: Workout Intervals Steady row Repeat four times for one set then take a break of 3 minu Œ’ˆŒŒ“”\fŒ•‹‹‰‹––•–‰–“ 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. Database Concurrency Control. 1 Purpose of Concurrency Control. To enforce Isolation (through mutual exclusion) among conflicting transactions. . To preserve database consistency through consistency preserving execution of transactions.. 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 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. 3:25. 3:30. CS 140 Lecture Notes: Concurrency. Slide . 1. Too Much Milk. Slide . 1. Too Much Milk. . Roomate. 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.

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