Johannes Bechberger
4,905 viewsAsyncGetCallTrace Reworked: Frame by Frame Iterative Touch!
This article is the first of two articles covering the draft of a new iterator-based stack walking API, which builds the base for the …
Johannes Bechberger
55 articles
358,881 viewsJohannes Bechberger
4,905 views
Johannes Bechberger
9,808 viewsThe Inner Workings of Safepoints
Have you ever wondered how safepoints are implemented in the OpenJDK? Follow me down the rabbit hole into the inner workings of the JVM.
Johannes Bechberger
2,706 viewsI could write a blog post, or...
Go out, visit the world, have friends, and read my blog post on flame-graph construction mid-next week.
Johannes Bechberger
5,355 viewsDebugging OpenJDK Tests in VSCode (Without Losing Your Mind)
jtreg is the test harness used by the JDK test framework. Attaching a debugger cumbersome to enable debugging in VSCode. But worry no more!
Johannes Bechberger
3,000 viewsJohannes Bechberger's Tour d'Europe
I spoke in two weeks in 3 countries, 4 cities and 5 different venues. This is my report on the trip. Check it out!
Johannes Bechberger
9,210 viewsClass Loader Hierarchies
Understanding class loader hierarchies is essential when developing instrumenting Java agents. So I wrote an article about it.
Johannes Bechberger
4,573 viewsUnlocking Reproducible Profiler Tests
How to use the WhiteBox API and Compiler Directives to get control of the JIT for better profiling of API tests!
Johannes Bechberger
8,936 viewsUsing Async-Profiler and Jattach Programmatically with AP-Loader
AP-Loader wraps async-profiler and its tools with an API in a cross-platform JAR. This article is about the API.
Johannes Bechberger
4,710 viewsCouldn’t we just Use AsyncGetCallTrace in a Separate Thread?
Using AsyncGetCallTrace from a separate sampler thread is possible and this article tells you why and how!
Johannes Bechberger
11,801 viewsInstrumenting Java Code to Find and Handle Unused Classes
Ever wondered how to find classes and dependencies that you don't actually use? Here I describe how to implement an instrumenting Java …