#java #jvm #performance #profiling #opensource #flamegraphs #devtools #kubernetes #docker #ai #easterrelease | Petr Bouda 🐰🔥 Jeffrey's Easter Egg Hunt is ON! 🔥🐰 Four months ago, Jeffrey was coming to town with a Christmas promise. Today? Version 0.7.0 hatches – and this one is LOADED. 👉 Release Notes: https://lnkd.in/d6...

New Easter Release of Jeffrey 0.7.0 is out! 😉

10 or more reasons to not use JDK’s HttpClient Java mostly, and general tech

HTTP over Unix Domain Socket
openjdk.org/jeps/8377806

It's never too late, but still it should have been possible since jdk11. This draft appears to support passing a SocketAddress. But it will only support UDS at least at first.
That said other concerns remain...

blog.arkey.fr/2026/02/08/t...

📢 Microsoft is hiring a Senior Compiler Engineer to work on the #JVM!

If you have strong compiler / codegen / optimization skills, this could be your next big challenge.

Want a referral? Send me a DM.

#Hiring #CompilerEngineering #Systems #Microsoft #Java #OpenJDK #Java25

Standard JDK API for reading JFR has possibility to pass an interval (start and end). Unfortunately, don't know any better way to do it. Even chunks can overlap.

central.sonatype.com/artifact/caf...

Jeffrey - Java Profiling Tool Jeffrey - Java Profiling Tool for JFR Recordings

Inject custom HTTP JFR events into your code and then open JFR in www.jeffrey-analyst.cafe :)

Jeffrey - Java Profiling Tool Jeffrey - Java Profiling Tool for JFR Recordings

🚀 See it in action: www.jeffrey-analyst.cafe#/tour-with-e...

Jeffrey - Java Profiling Tool Jeffrey - Java Profiling Tool for JFR Recordings

🔥 Jeffrey 0.5 is HERE! 🔥
✨ Big Upgrade of Java performance detective. Ready to level up your Java performance game?✨

Look at the current features!
🔗 www.jeffrey-analyst.cafe#features

#Java #Performance #JFR #OpenJDK

I just updated the JFR events collection (sapmachine.io/jfrevents). It now includes JDK 25 and JDK 26 with my CPUTimeSample event:

Advanced performance analysis with async-profiler by Andrei Pangin YouTube video by Devoxx UK

Insightful session on advanced performance analysis with async-profiler, presented by Andrei Pangin.

🎥 www.youtube.com/watch?v=u7-S...

#Java #Performance #Profiling

8193513: add support for printing a stack trace on class loading by dougxc · Pull Request #14553 · openjdk/jdk In the development of libgraal, it has been very useful to see why a given class is loaded (e.g., trying to reduce startup time by avoiding unnecessary eager class loading). One way to do this is t...

TIL: since jdk22 you can use the JVM option -XX:LogClassLoadingCauseFor=com.mycompany.MyClass in conjunction with -Xlog:class+load+cause* to find out the stacktrace that triggers the load of the specify class.
see github.com/openjdk/jdk/...

Feedback on v4.0 release · async-profiler async-profiler · Discussion #1224 v4.0 Features #895, #905: jfrconv binary and numerous converter enhancements #944: Interactive Heatmap #1064: Native memory leak profiler #1002: An option to display instruction addresses #1007: Op...

🥳🥳 github.com/async-profil...