Java/JVM (HotSpot): Is there a way to save JIT performance gains at compile time?

Question

When I measure the throughput of my Java application, I see a 50% performance increase over time:

• For the first 100K messages, I get ~3,000 messages per second

Answer 1

Are you sure it is CPU related and not IO related? I have seen this behaviour a lot of times, when hitting a cold cache somewhere worsens performance.