Performance Pipelines Hazards Points to take home
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Questions and Answers

What are the two ways to measure performance?

  • Input and output
  • Speed and efficiency
  • Time and distance
  • Latency and throughput (correct)
  • Are latency and throughput the inverse of each other?

  • No (correct)
  • Yes
  • Sometimes
  • Not sure
  • In real-life examples, which measure is usually chosen for optimization?

  • Throughput (correct)
  • Latency
  • Speed
  • Efficiency
  • What analogy is used to explain the difference between latency and throughput?

    <p>All of the above</p> Signup and view all the answers

    What is the ideal scenario for performing tasks in a group?

    <p>A group forms a line to pass on filled buckets</p> Signup and view all the answers

    What concept is being demonstrated with the scenario of putting out a fire?

    <p>Pipeline hazards</p> Signup and view all the answers

    What is the main benefit of parallelism in the context of performance pipelines?

    <p>Increased throughput</p> Signup and view all the answers

    How does the presence of a structural hazard in a pipeline affect the following instructions?

    <p>Stall the following instructions</p> Signup and view all the answers

    What is a potential issue when a hardware device sends an interrupt to the processor?

    <p>Exception handling</p> Signup and view all the answers

    In the context of performance pipelines, what can lead to a higher clock frequency and throughput?

    <p>Dividing the task into a large number of stages</p> Signup and view all the answers

    What is the benefit of a pipeline with overlap in terms of program execution time?

    <p>Shorter program end time</p> Signup and view all the answers

    How does a varying width instruction format impact pipelining?

    <p>Makes pipelining harder</p> Signup and view all the answers

    What is the effect of parallelism on program execution with multiple lines in the context of extinguishing fire?

    <p>Continuous flow of water</p> Signup and view all the answers

    When two dependent instructions are in the pipeline together, what type of hazard is encountered?

    <p>Data hazard</p> Signup and view all the answers

    What does starting a new instruction every clock cycle indicate in terms of speedup?

    <p>Higher speedup with more stages</p> Signup and view all the answers

    What is the primary focus of ELC3030—Computer 3 A Electronics and Electrical Communications Department?

    <p>Microprocessor design and digital logic</p> Signup and view all the answers

    Which of the following is NOT a topic covered in the class?

    <p>Networking protocols</p> Signup and view all the answers

    What type of processors have the structures studied in this class?

    <p>Basic simple units used in current microcontrollers</p> Signup and view all the answers

    What is the main focus of the videos linked in the course materials?

    <p>Explaining microarchitecture features of current processor designs</p> Signup and view all the answers

    What is the main difference between the basic simple units studied so far and the advanced processors mentioned in the text?

    <p>Elaborate ideas and usage in digital signal processing</p> Signup and view all the answers

    What is the main goal of studying pipelines, branch prediction, and caches in this class?

    <p>To understand advanced processor techniques</p> Signup and view all the answers

    In the context of high performance digital systems, what is the purpose of exploring buses, serial/parallel interconnects, and input/output interfacing?

    <p>To study the communication protocols between different digital components</p> Signup and view all the answers

    What is the primary measure of performance in real-life examples such as baking bread or passengers in a train station?

    <p>Latency</p> Signup and view all the answers

    How is performance usually measured in terms of the number of tasks finished in a fixed time?

    <p>Throughput</p> Signup and view all the answers

    What does parallelism in action enable in the context of task execution?

    <p>Continuous flow with independent tasks</p> Signup and view all the answers

    What is the key characteristic that distinguishes latency from throughput in performance measurement?

    <p>Time delay to finish a task</p> Signup and view all the answers

    What is the primary focus when studying memories, caches, interleaving, and virtual memory in a processor?

    <p>Enhancing data storage and retrieval efficiency</p> Signup and view all the answers

    Which type of measure is commonly chosen for optimization when studying memories, caches, and virtual memory?

    <p>Throughput</p> Signup and view all the answers

    What is the main benefit of parallelism in the context of performance pipelines?

    <p>Higher throughput</p> Signup and view all the answers

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