'Precedence graph' presentation slideshows

Transactions & Concurrency

997 views • 80 slides

CS216 Advanced Database Systems

1.03k views • 61 slides

Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing

Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing. S. M. Farhad PhD Student Supervisor : Dr. Bernhard Scholz Programming Language Group School of Information Technology University of Sydney. Abstract.

548 views • 37 slides

Concurrency Control

Concurrency Control. Amol Deshpande CMSC424. Approach, Assumptions etc. Approach Guarantee conflict-serializability by allowing certain types of concurrency Lock-based Assumptions: Durability is not a problem So no crashes Though transactions may still abort Goal: Serializability

533 views • 36 slides

Scheduling Basic Concepts Processes - Tasks - Threads

Scheduling Basic Concepts Processes - Tasks - Threads. Nostalgia. Apollo Guidance Computer First Microprocessor Microcontroller. Automobile Computers: 2006: 1-2 million lines of code 2010: 10 million lines of code.

395 views • 34 slides

Controlled concurrency

Controlled concurrency. Now we start looking at what kind of concurrency we should allow We first look at uncontrolled concurrency and see what happens We look at 3 bad examples We then look at how we can understand whether concurrency is OK or not. Then we look at how to control concurrency.

537 views • 33 slides

International Computer Institute, Izmir, Turkey Transactions

International Computer Institute, Izmir, Turkey Transactions. Asst. Prof. Dr. ?lker Kocaba? UB?502 at http://ube.ege.edu.tr/~ikocabas/teaching/ubi502/index.html. Transactions. Introduction Concurrent Execution and Schedules Serializability Recoverability Transaction Definition in SQL

320 views • 31 slides

CS 277: Database System Implementation Notes 11: View Serializability

CS 277: Database System Implementation Notes 11: View Serializability. Arthur Keller. View Serializability. Conflict equivalent View equivalent Conflict serializable View serializable. Motivating example. Schedule Q T 1 T 2 T 3 Read(A) Write(A) Write(A)

736 views • 30 slides

CS 277: Database System Implementation Notes 11: View Serializability

CS 277: Database System Implementation Notes 11: View Serializability. Arthur Keller. View Serializability. Conflict equivalent View equivalent Conflict serializable View serializable. Motivating example. Schedule Q T 1 T 2 T 3 Read(A) Write(A) Write(A)

693 views • 30 slides

Introduction to Concurrency

525 views • 29 slides

Introduction to Concurrency

294 views • 29 slides

Iterative Flattening in Cumulative Scheduling

Iterative Flattening in Cumulative Scheduling. Cumulative Scheduling Problem. Set of Jobs Each job consists of a sequence of activities Each activity has a duration a machine on which it executes a demand for the capacity of this machine. Cumulative Scheduling Problem.

298 views • 21 slides

CSE 421 Algorithms

166 views • 16 slides

18.2 Conflict- Serializability

18.2 Conflict- Serializability. Kyoung-Hwan Yun (#110). 18.2 Conflict- Serializability. Conflicts Precedence Graphs and a Test for Conflict- Serializability. Conflicts.

269 views • 15 slides

Conflict-Serializability (section 18.2 of Concurrency Control)

312 views • 11 slides

Concurrency Control

Concurrency Control. Complete Schedule. T 1. R 1 (X). W 1 (X). C 1. T 2. R 2 (X). W 2 (X). C 2. Example 1. T 1 : {R 1 (x), x = x+1, W 1 (x), C 1 } T 2 : {R 2 (x), x = x+1, W 2 (x), C 2 } Conflicting operations between T 1 and T 2 :

160 views • 11 slides

NET 424: REAL-TIME SYSTEMS ( Practical Part)

158 views • 7 slides