Improve warm-up time by making profile data from a previous run of an application instantly available, when the HotSpot Java Virtual Machine starts. Specifically, enhance the [AOT cache](https://openjdk.org/jeps/483) to store method execution profiles from training runs, reducing profiling delays in subsequent production runs.
More details in the JEP: https://bugs.openjdk.org/browse/JDK-8325147 ------------- Commit messages: - Merge branch 'master' into pp - Add AOTCompileEagerly flag to control compilation after clinit - Port 8355334: [leyden] Missing type profile info in archived training data - Port 8355296: [leyden] Some methods are stuck at level=0 with -XX:-TieredCompilation - Use ENABLE_IF macro - Missing part of the last commit - Fix value of CompLevel_count - Add test - Don't compile trainingData.cpp without CDS (part 2) - Don't compile trainingData.cpp without CDS (part 1) - ... and 18 more: https://git.openjdk.org/jdk/compare/5c067232...3ec132e7 Changes: https://git.openjdk.org/jdk/pull/24886/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24886&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8355003 Stats: 3202 lines in 57 files changed: 2976 ins; 103 del; 123 mod Patch: https://git.openjdk.org/jdk/pull/24886.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24886/head:pull/24886 PR: https://git.openjdk.org/jdk/pull/24886
