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What is the primary purpose of the vTaskGetRunTimeStats() function in FreeRTOS?

easy📝 Conceptual Q11 of 15
FreeRTOS - Debugging and Monitoring
What is the primary purpose of the vTaskGetRunTimeStats() function in FreeRTOS?
ATo suspend all running tasks temporarily
BTo create a new task with specific priority
CTo delete a task from the scheduler
DTo display the CPU usage time of each task
Step-by-Step Solution
Solution:

  1. Step 1: Understand the function's role

    vTaskGetRunTimeStats() is designed to collect and display CPU usage statistics for each task in FreeRTOS.

  2. Step 2: Compare options with function purpose

    Options A, B, and C relate to task management but not CPU usage reporting, which is the key role of vTaskGetRunTimeStats().

  3. Final Answer:

    To display the CPU usage time of each task -> Option D

  4. Quick Check:

    Function purpose = CPU usage display [OK]
Quick Trick: Remember: vTaskGetRunTimeStats shows CPU time per task [OK]
Common Mistakes:
  • Confusing it with task creation or deletion functions
  • Thinking it suspends tasks instead of reporting stats
  • Assuming it modifies task priorities

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