FreeRTOS - Task Scheduling
If a high priority task becomes ready while a low priority task is running, what will FreeRTOS scheduler do?
If a high priority task becomes ready while a low priority task is running, what will FreeRTOS scheduler do?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Recall preemptive scheduling behavior
FreeRTOS preempts lower priority tasks when higher priority tasks become ready.Step 2: Apply this to the scenario
The scheduler will stop the low priority task and run the high priority one immediately.Final Answer:
Preempt the low priority task and run the high priority task -> Option CQuick Check:
Preemption = High priority runs immediately [OK]
Quick Trick: High priority tasks preempt lower ones instantly [OK]
Common Mistakes:
- Thinking low priority task runs to completion
- Assuming tasks run simultaneously
- Believing scheduler ignores high priority tasks
Master "Task Scheduling" in FreeRTOS
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