This is the code for the [JEP 509: CPU Time based profiling for JFR](https://openjdk.org/jeps/509).
Currently tested using [this test suite](https://github.com/parttimenerd/basic-profiler-tests). This runs profiles the [Renaissance](https://renaissance.dev/) benchmark with - ... different heap sizes - ... different GCs - ... different samplers (the standard JFR and the new CPU Time Sampler and both) - ... different JFR recording durations - ... different chunk-sizes ------------- Depends on: https://git.openjdk.org/jdk/pull/24296 Commit messages: - Remove unused WhiteBox method - Read _active_signal_handlers atomically - Check whether raw_thread is not null and is JavaThread is signal handler - Tiny fixes - Fix uninitialized variable - Reduce diff - Refactor - Reduce diff - Reduce diff - Tiny fixes - ... and 11 more: https://git.openjdk.org/jdk/compare/71c284ae...d180ce01 Changes: https://git.openjdk.org/jdk/pull/25302/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25302&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8337789 Stats: 2335 lines in 46 files changed: 2184 ins; 130 del; 21 mod Patch: https://git.openjdk.org/jdk/pull/25302.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25302/head:pull/25302 PR: https://git.openjdk.org/jdk/pull/25302
