What are the best practices for Java benchmarking using JMH?
When benchmarking in Java with JMH, it's crucial to follow best practices like using warm-up iterations, avoiding dead code, and ensuring a stable environment.
Can you explain why warm-up iterations are important?
Warm-up iterations help to eliminate JVM optimizations that may skew the results. They allow the JVM to optimize the code before measuring performance.
What should I avoid when benchmarking?
Avoid benchmarking in a noisy environment, using too few iterations, and measuring too many metrics at once, as these can lead to unreliable results.
How can I ensure my benchmarks are reliable?
To ensure reliability, run benchmarks multiple times, use a dedicated machine, and analyze the results statistically to account for variability.
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