Johannes Bechberger

temci. An advanced benchmarking tool

hello-ebpf. Hello eBPF world! Hello Java world! Let's discover eBPF together and write Java user-land library along the way.

tiny-profiler. A tiny CPU profiler for Java written completely in Java 17.

intellij-profiler-plugin. IntelliJ plugin to view JFR profiler files and to profile using JFR

ebpf-verifier-errors. A project to collect eBPF verifier errors and how they can be resolved

minimal-scheduler. A minimal Linux scheduler with sched-ext written in C

concurrency-fuzz-scheduler. Custom Linux scheduler for concurrency fuzzing written in Java with hello-ebpf

meta-agent. Instrument instrumenting agents to see how they transform classes

python-dbg. Python debugger experiments

jug-profiling-talk. Notes and scripts for my JUG KA talk on Java profiling

Moderne-Physik. Skriptartiger Mitschrieb für die Vorlesung Moderne Physik für Informatiker, SS15/17, KIT

dead-code-agent. Agent based dead code/classes detection

jfrevents. Collection of information on JFR events

jfrtofp. JFR to Firefox Profiler converter

writing-a-profiler. Code for my "Writing a Profiler from Scratch" blog series on mostlynerdless.de and foojay.io

jfr-query-experiments. JFR view and query experiments

panama-examples. Examples for using jextract and project Panama. Used as complimentary material for my blog posts.

asgct2-demo. Demo repository for JEP Candidate 435

jfrtofp-server. Bundles the JFR to FirefoxProfiler with a custom FirefoxProfiler

swp. Experimental LR parser generator that can generate GIFs

classloader-hierarchy-agent. Agent to print the classloader hierarchy

jfrevents-site-generator. Generator of my JFR events website, using the jfreventscollector as a data source.

taskcontrol. Custom schedulers for concurrency testing with a Java API

cpuset. Python3 port of cpuset (https://github.com/lpechacek/cpuset)

jdwp. JDWP packet processing and logging

classviewer-agent. Agent to view the decompiled bytecode of classes, as they are currently executed

parser-experiments. Tiny parsers for educational purposes

tiny-bf. A micro bf interpreter in some lines of Ruby.

vsreg. Creates VSCode launch configurations to help debugging JTREG tests and regular native programs

jdk-profiling-tester. Testing AsyncGetCallTrace, AsyncGetCallTrace2 and JFR stacktrace collection for stability issues

mvm. A simple virtual machine for an imperative and dynamicly typed language

firefox-profiler. Firefox Profiler — Web app for Firefox performance analysis

waste-cpu-experiments. Python

LBJOS. LBJOS is the acronym for "Little Java Based Operating System", it's my attempt to build something like an OS on the JVM...

asgct_bottom. An Agent that checks the bottom-most frame returned by AsyncGetCallTrace is correct (using GST), thereby checking that ASGCT does not abort the stack walking too early.

abipage. An easy to setup webpage, helping the creation of a german pupils "Abizeitung"

asuroflash. asuroflash for linux, without QT dependencies

condensed-data. Library and tool for writing compressed (JFR) event data

AutomatonLang. A meta language for creating finite and mealy automations with an editor and the capabilty to create JFLAP files

dsharpy. Combining model checkers with quantitative information flow leakage computation

trace_tester. Code to make testing ASGST and writing tests easier

nildumu. A quantitative information flow analysis on PDGs based on a data flow analysis

while-semantics. A visualization of evaluations of the while language via semantic rules.

manual. This manual documents how to use the basic features of Uberspace 7.

tumour_classifier. A simple tumour classifier based on microRNA expression profiles

sound-of-scheduling. A Linux scheduler written in Java that produces sound

async-profiler. Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

tunes. Games to learn some music theory

java-dbg. Java debugging experiments

cbmc. C Bounded Model Checker