JVM args to fine tune performance.

Common Tuning Args:

• Memory: -Xms (start heap), -Xmx (max heap), -Xss (thread stack size).
• GC Collector: -XX:+UseG1GC, -XX:+UseZGC, -XX:+UseParallelGC.
• GC Details: -Xlog:gc* (Java 9+), -XX:+PrintGCDetails.
• Metaspace: -XX:MetaspaceSize, -XX:MaxMetaspaceSize.
• Heap Dump on Error: -XX:+HeapDumpOnOutOfMemoryError.
• Tiered Compilation: -XX:+TieredCompilation.