28.6.1. JVM Options

Try these first

1. 1.

   What does the -Xmx flag do?

   Hint

   Think about the memory limit for Java applications.

2. 2.

   What is indicated by -Xms?

   Hint

   Consider what the JVM needs when it starts.

3. 3.

   What does the -Xmx flag specify?

   • Initial heap size
   • Maximum heap size
   • Garbage collection method

   Hint

   Think about memory allocation.

4. 4.

   True or False: The -Xlog:gc* option is used for garbage collection logging.

   • True
   • False

   Hint

   Consider its function regarding monitoring.

5. 5.

   Given an application that heavily relies on data processing, analyze how adjusting the -Xmx setting could enhance its performance in a cloud environment.

   Hint

   Think about your workload and how memory affects it.

6. 6.

   Discuss the implications of switching from CMS to G1 as the garbage collector in a Java application with high throughput requirements.

   Hint

   Consider both pause times and overall application performance.