Johannes Bechberger

Johannes Bechberger

Johannes Bechberger

A JVM developer working on profilers and their underlying technology, e.g. JEP Candidate 435, in the SapMachine team at SAP.

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Writing a Profiler from Scratch: Introduction

How do profilers like async-profiler work? How to write your own? This series tries to write a tiny sampling-based profiler from scratch!

JFR Event Collection

Ever wondered what all the JDK Flight Recorder events are, in which JDK versions they are supported, and what examples of an event looks like?

Sample flamegraph for a dacapo benchmark run
AP-Loader: A New Way to Use and Embed async-profiler

Using async-profiler can be quite a hassle, especially when trying to use it in a library. The new ap-loader project tries to fix this!

Title slide of my JUG talk on profiling
Java Profiling Overview

When I ask Java developers whether they profile, the answer is usually “no”. A reason is the lack of info and knowledge for everyday developers.

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