Johannes Bechberger • 9/1/2025

Java 25’s new CPU-Time Profiler: Removing Redundant Synchronization (4)

This blog post dives into the implementation details of the new CPU-Time Profiler in Java 25. It examines whether the sampler's primary data structure is truly a queue, discusses the use of locks versus atomic operations for synchronization, and explains the reasoning behind the current design choices for thread safety and performance.

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#profiling #concurrency #data structures