Practice Gc Tuning (10.5.3) - JVM Internals and Performance Tuning

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9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the -Xms JVM option stand for?
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Think about the size the JVM starts with.
Question 2.
What is the purpose of the -Xmx flag?
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Consider how large the JVM can grow.
3Question 3.
What does the -Xms JVM option do?
- Sets the maximum heap size
- Sets the initial heap size
- Defines young generation size
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What memory size does the JVM start with?
4Question 4.
True or False: The G1 GC is designed for applications that require high throughput only.
- True
- False
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Think about G1's capabilities.
Question 5.
Your application is experiencing long garbage collection pause times. Suggest improvements based on your understanding of GC tuning.
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Think about both JVM options and monitoring.
Question 6.
You have used G1 GC in your application, but are still experiencing performance issues. What could be the possible reasons, and how can you investigate further?
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Look for patterns in the monitored GC activity that might suggest issues.

5 more questions in this section. Enroll free to practise them all.