Given two FreeRTOS tasks: Task1 (priority 1) is running, and Task2 (priority 2) becomes ready. What will FreeRTOS do next if preemptive scheduling is enabled?

medium📝 Predict Output Q4 of 15

FreeRTOS - Task Scheduling

ATask2 waits until Task1 finishes its time slice

BTask1 continues running until it blocks or yields

CBoth tasks run simultaneously on separate cores

DTask2 immediately preempts Task1 and starts running

Step-by-Step Solution

Solution:

Step 1: Identify task priorities
Task2 has higher priority (2) than Task1 (1).
Step 2: Understand preemptive scheduling behavior
With preemption enabled, a higher priority ready task immediately preempts the running lower priority task.
Final Answer:
Task2 immediately preempts Task1 and starts running -> Option D
Quick Check:
Higher priority task preempts running task immediately [OK]

Quick Trick: Higher priority ready task preempts running task immediately [OK]

Common Mistakes:

Assuming tasks run concurrently on single-core
Believing lower priority task runs until time slice ends
Ignoring preemption setting

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More FreeRTOS Quizzes

Given two FreeRTOS tasks: Task1 (priority 1) is running, and Task2 (priority 2) becomes ready. What will FreeRTOS do next if preemptive scheduling is enabled?

Step 1: Identify task priorities

Step 2: Understand preemptive scheduling behavior

Final Answer:

Quick Check:

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