Have you performed JVM parameter tuning to optimize application performance?

Yes, configuring JVM parameters is an important step for optimizing the performance of Java applications. Typically, I configure parameters such as:

• Heap sizes (-Xms, -Xmx) to control the memory allocated to the application.
• Garbage collector settings (for example, -XX:+UseG1GC to enable G1 GC).
• JIT compilation parameters (-XX:CompileThreshold).
• Logging and monitoring (-XX:+PrintGCDetails, -Xlog:gc).

An example of launching with memory and garbage collector settings:

java -Xms512m -Xmx2g -XX:+UseG1GC -jar myapp.jar

Such configuration helps prevent OutOfMemoryError, reduces pauses during garbage collection, and improves application performance.