Writing a Profiler in 240 lines of pure Java

• JDK

  191 18,393 10.0 Java

  JDK main-line development https://openjdk.org/projects/jdk

  

doesn't `Runtime.addShutdownHook` have a synchronisation point. like all writes need to have occurred before `ApplicationShutdownHooks.add` has been called so there is no publish problem.

          https://github.com/openjdk/jdk/blob/2fa09333ef0ac2dc1e44292f8d45d4571cb22cca/src/java.base/share/classes/java/lang/Runtime.java#L69

• java-profiling-presentation

  1 137 10.0 HTML

  Materials for the presentation TUT2844 "Mastering Java Performance with async-profiler"

> ... JFR will not report anything useful at all, since it cannot traverse stack traces when JVM is running System.arraycopy()

I'd rather run jstack in a loop than lose System.arraycopy() (or, in fact, any native code be it JVM's or JNI).

[1] https://github.com/apangin/java-profiling-presentation

• WorkOS

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