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The proposal aims to improve the warmup time of Java applications by using ahead-of-time (AOT) method profiling. This involves making execution profiles from previous application runs readily available when the HotSpot JVM starts. These profiles enable the JIT compiler to generate native code promptly, accelerating startup and peak performance. Existing AOT cache features are used to store method profiles collected during training runs, enhancing the JIT compilation process and reducing warmup duration in production environments.

JEP 515: Ahead-of-Time Method Profiling

<p>It will be interesting to see some benchmarks on how this JEP compares with an app compiled with GraalVM. I know they are fundamentally different in how they behave but both aim to do the same, so comparing results will be nice to see.</p>
