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5 cards from this section. Quick, good the night before a test.
What does the JVM option -verbose:gc do?
Think about what you want to monitor in your application.
What is the purpose of the -Xms option?
Consider what happens to heap memory at the start of your Java application.
What does -Xms specify?
Think about the starting point of heap memory.
True or False: -XX:+PrintGCDetails provides performance details of the application.
Focus on what the logs contain.
Imagine you are tuning a Java application running out of memory errors. How would you approach setting the heap sizes and garbage collector?
Consider the application's memory needs and the GC collector's performance.
You notice frequent GC logs indicate long pause times. What steps can you take to minimize these pauses?
Look for how memory is being reclaimed and at what cost.
6 more questions in this section. Enroll free to practise them all.
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