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Module 3: Pipelining

20242m

Which technique is used to handle data hazards in pipelining?
a) Increasing memory size
b) Instruction scheduling
c) Parallel processing
d) Increasing clock speed

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Answer: b) Instruction scheduling

Explanation:

  • Data hazards (RAW, etc.) handled by:
    • Data forwarding/bypassing
    • Instruction scheduling / reordering (compiler or hardware - out-of-order execution) to insert independent instructions between dependent ones
    • Stalling (NOP insertion)
  • Increasing memory size, parallel processing, or clock speed do not resolve data dependencies.

Hence among options, Instruction scheduling is the technique.

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