FreeRTOS - Task Scheduling
A developer notices that two equal priority tasks are not sharing CPU time fairly. Which of the following is the most likely cause?
A developer notices that two equal priority tasks are not sharing CPU time fairly. Which of the following is the most likely cause?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Identify cause of unfair CPU sharing
Time-slicing must be enabled for equal priority tasks to share CPU fairly.Step 2: Check config settings
If configUSE_TIME_SLICING is 0, tasks won't time-slice and share CPU fairly.Final Answer:
configUSE_TIME_SLICING is set to 0 -> Option DQuick Check:
Unfair CPU sharing cause = B [OK]
Quick Trick: Enable time-slicing to ensure fair CPU sharing [OK]
Common Mistakes:
- Blaming stack size or names
- Misunderstanding max priorities effect
- Ignoring time-slicing config
Master "Task Scheduling" in FreeRTOS
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