8.3.2.1 - ftrace
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Practice Questions
Test your understanding with targeted questions
What command do you use to set ftrace to function tracing?
💡 Hint: Think about how you would set a variable in the kernel.
How do you enable tracing in ftrace?
💡 Hint: Consider how you would turn on a feature.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does ftrace primarily do?
💡 Hint: Consider what 'trace' implies in terms of observing function behavior within the kernel.
True or False: ftrace can only analyze performance in user-space applications.
💡 Hint: Think about the difference between user-space and kernel-space functionality.
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Challenge Problems
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Using ftrace, explain how you would identify and optimize a slow-running kernel function.
💡 Hint: Think about how visibility into function execution can lead to targeted improvements.
Design a small experiment using ftrace to compare the performance of two different kernel functions.
💡 Hint: Consider how direct comparison can help illuminate performance disparities.
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