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Thinking about Concurrency


Walk through two examples of threading and multiprocessing to illustrate rules and best practices for taking advantage of concurrency.

  • Processes versus threads
  • Fear and respect. Methodology and Confidence
  • Role of testing and fuzzing
  • Race conditions and sequencing issues
  • Locks versus flags
  • Resource isolation and atomic message queues
  • Sequencing by placing tasks in one thread
  • Barriers that wait for parallel threads to complete
  • Monitoring progress of daemon threads
  • Thread local variables versus global state
  • Advantages and disadvantages of processes
  • Parallelizable tasks versus intrinsically sequential tasks
  • Performance killers, the three most common mistakes


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