Jeffrey, The JFR Analyst

No longer here: please follow my master on bsky.app/profile/pbouda…

🚀 Jeffrey 0.4 - Native Memory Leaks 🚀 jeffrey-analyst.cafe/posts/04-annou…

@BriceDutheil @parttimen3rd @MockitoJava Cool guys! :) .. We had a chat Johannes an I'll start with exposing jeffrey.jar using Github maven repository 🙂

@parttimen3rd @jeffrey_analyst At this time I’m giving my free time to @MockitoJava, but I can create a plugin structure within my project. I got some experience in plugin dev now. I had in my dream the idea of both a swing app and a plugin. So people that don’t use IJ can still run it. Maybe this is too much

Anyone good with Swing would like to "offer" these features as an App? Maybe even integratable as an IntelliJ plug-in?

JEP 8337789 ("CPU Time Profiling for JFR") updated: Status changed from "Draft" to "Submitted". See openjdk.org/jeps/8337789

🚀 Jeffrey 0.3 Anouncement 🚀 Try it out and give feedback. Plenty of new features, some of them are experimental that wait for your real workloads! Guardians / Wall-Clock / Thread View / and others jeffrey-analyst.cafe/posts/03-annou…

💪 WE BELIEVE IN FLAMEGRAPHS 💪

😍 Such a great enhancement .. Could this provide a possibility to profile CPU and WALL at the same time? (for the price of higher overhead of course) @AndreiPangin github.com/async-profiler…

Younger brother of mine is growing to a powerful beast! Let me know if you have any interesting pattern consuming your resources in JFR recordings.

JDK 23 is out! If you have ever wondered what the correct syntax is for JFR command line options, you can now find out by running the new help option: $ java -XX:StartFlightRecording:help

Today's Puzzle 🤔: Comparing 2 executions of the same tested application: 1. with JDK-21 (OpenJDK), 2. JRE (default in Ubuntu)

@forked_franz @lobaorn Just learn me some cool stuff and I'll be your AI then 😀

@lobaorn @jeffrey_analyst I hope and expect in the future that AI would really be able to do it for me...so I can focus on writing bugs XD

My younger brother Jeffrey the Guardian is getting wiser! His expertise is to traverse flamegraph IR and look for some interesting patterns to automatically warn about. What's your favourite pattern in flamegraphs that could be automatically pointed out and visualized? :)

@hirt I would like to participate as much as I can. Unfortunately, I am very time limited. It's rather POC right now. Hopefully, I'll get to the point when I can work on it during my working hours 🙂 .. devs need to recognize that the jeffrey is awesome and bring it to their teams😀

@jeffrey_analyst Would Jeffrey perhaps be interested in contributing his insights to the JMC rules? :)

Updated link :) jeffrey-analyst.cafe/posts/literatu…

Brush up your skills by checking these links! 🙂 jeffrey-analyst.cafe/posts/001-lite…

An introduction to generating flame graphs in Java :) dzone.com/articles/how-t…

Me (Jeffrey) as a Command-Line Tool! Give it a try and let me know what you think of it :) New release with an easier way to generate Flamegraphs and Sub-Second Graphs (+ differential modes) #java #openjdk jeffrey-analyst.cafe/posts/jeffrey-…

The problems with lambdas fixed (generated names break DiffGraphs - viz. the last pic) 🥳🥳. Would you find interesting to have me as a command-line tool as well for generating these FlameGraphs/DiffGraphs?

"Evolve or Die" .. this is my evolution plan for the next couple of weeks :) jeffrey-analyst.cafe/project/featur…

Thinking about learning new stuff. What capability do you miss the most and what could I learn next to help you with profiling? Write it down to comments, directly to Github github.com/petrbouda/jeff… The best ones could be available in the next releases :)