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Lecture on Java Concurrency Day 2 on Feb 4, 2009.

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Kyung Koo Yoon
Kyung Koo Yoon

Lecture on Java Concurrency Day 2 on Feb 4, 2009. (in Korean) Lectures are 4 days in all. See http://javadom.blogspot.com/2011/06/lecture-on-java-concurrency-day-2.html

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Practical Concurrency January, 2009 http://javadom.blogspot.com/2011/06/lecture-on-java-concurrency-day-2.html
Day 2 (9am, Feb 4, 2009) Concurrency Concerns Performance Concurrency Design
2-1 Concurrency Concerns Correctness Liveness
Correctness (Multi-threaded Safety) ,[object Object],[object Object],[object Object]
Liveness ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Deadlock ,[object Object],[object Object],[object Object],[object Object],[object Object]
Livelock ,[object Object]
2-2 Performance Amdahl’s law Context Switch Overhead Memory Barrier Overhead
Amdahl’s law
Context Switch Overhead ,[object Object],[object Object],[object Object],[object Object],[object Object]
Memory Barrier ,[object Object],[object Object],[object Object]
2-3 Concurrency Design Concurrency Design Step Concerns Objects in Worker Thread Model Collection Design
Steps of Designing Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Concerns on Designing Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Further considerations ,[object Object],[object Object],[object Object]
Worker Threads ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Worker Threads and Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Worker Threads and Objects (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Lecture on Java Concurrency Day 2 on Feb 4, 2009.

Editor's Notes

  1. Deadlock :circular dependencies among locks Livelock : a continously retried action countinously fails
  2. rs represents the ratio of the sequential portion in one program
  3. Process Context Switch Overhead : text/data/stack (user area), kernel stack Thread Context Switch Overhead : stack (user), kernel stack