28.7.1. Heap Tuning

Try these first

1. 1.

   What flag is used to set the initial heap size in JVM?

   Hint

   Think about the starting point of the heap.

2. 2.

   What does the -Xmx flag indicate?

   Hint

   Recall what the maximum limit of something means.

3. 3.

   What is the purpose of -Xms in JVM tuning?

   • Sets the maximum heap size
   • Sets the initial heap size
   • Sets the Eden space size

   Hint

   Remember the starting point concept.

4. 4.

   True or False: A higher Survivor space allocation can reduce garbage collection times.

   • True
   • False

   Hint

   Consider the balance of allocation and collection times.

5. 5.

   Given an application that frequently encounters OutOfMemoryErrors, how would you approach tuning the JVM heap settings to resolve this issue?

   Hint

   Understand the application workload and tailor your settings accordingly.

6. 6.

   An application has a mixed workload but results in long garbage collection pauses. How might you adjust your Eden and Survivor space configurations?

   Hint

   It’s about finding the right balance in memory distribution.