JDK-8355003 : Implement JEP 515: Ahead-of-Time Method Profiling
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-04-17
  • Updated: 2025-10-23
  • Resolved: 2025-10-23
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JDK 25
25 b26Fixed
Related Reports
Blocks :  
JDK-8325147 - JEP 515: Ahead-of-Time Method Profiling
CSR :  
JDK-8356012 - Implement JEP 515: Ahead-of-Time Method Profiling
Causes :  
JDK-8361952 - Installation of MethodData::extra_data_lock() misses synchronization on reader side
Causes :  
JDK-8368071 - Compilation throughput regressed 2X-8X after JDK-8355003
Causes :  
JDK-8358003 - KlassTrainingData initializer reads garbage holder
Causes :  
JDK-8365726 - Test crashed with assert in C1 thread: Possible safepoint reached by thread that does not allow it
Causes :  
JDK-8358001 - Dead code in CompileTrainingData::notice_jit_observation
Causes :  
JDK-8358254 - [AOT] runtime/cds/appcds/applications/JavacBench.java#aot crashes with SEGV in ClassLoaderData::holder
Causes :  
JDK-8358339 - Handle MethodCounters::_method backlinks after JDK-8355003
Causes :  
JDK-8359960 - Regression ~3% on multiple Micros-SystemGC-ZGC only on Mac aarch64
Causes :  
JDK-8357999 - SA: FileMapInfo.metadataTypeArray initialization issue after JDK-8355003
Relates :  
JDK-8366701 - [lworld] Method profiles for AOT cache introduced with JEP 515 miss Valhalla specific profiling
Relates :  
JDK-8358284 - doc/testing.html is not up to date after JDK-8355003
Relates :  
JDK-8359436 - AOTCompileEagerly should not be diagnostic
Relates :  
JDK-8369033 - Remove dead code in training data
Relates :  
JDK-8358707 - [leyden] Flip AOTCompileEagerly back on
Relates :  
JDK-8368321 - Rethink compilation delay strategy for lukewarm methods
Relates :  
JDK-8358283 - Inconsistent failure mode for MetaspaceObj::operator new(size_t, MemTag)
Comments
Changeset: e3f85c96 Branch: master Author: Igor Veresov <iveresov@openjdk.org> Date: 2025-05-28 15:15:03 +0000 URL: https://git.openjdk.org/jdk/commit/e3f85c961b4c1e5e01aedf3a0f4e1b0e6ff457fd
28-05-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/24886 Date: 2025-04-25 20:18:41 +0000
25-04-2025
Draft PR: https://github.com/openjdk/jdk/pull/24210
18-04-2025