What is JMH benchmarking and how can I use it?

What is JMH benchmarking and how can I use it?

JMH stands for Java Microbenchmark Harness. It's a tool for benchmarking Java code to measure performance accurately.

How do I set up JMH in my Java project?

You can set up JMH by adding the JMH dependency to your Maven or Gradle project and creating benchmark classes.

Can you give me an example of a simple benchmark?

Sure! Here's a simple example:

@Benchmark
public void testMethod() {
    // code to benchmark
}

What are some common pitfalls to avoid when using JMH?

Common pitfalls include not using the right warm-up iterations and misunderstanding the results due to JVM optimizations.