Krystian Zybała
@k_zybala
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I’m trying to understand #JVM #JVMPerformance | Trainer | Speaker.
Kraków, Polska
Joined November 2014
People talk about profiling to find bottlenecks, but no one explains how to fix them. Many devs shoot in the dark and when the optimization backfires, they aren't sure how to proceed. This is where you wish for a theory to systematically reason about the optimizations so that
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oops did it again
bouncy ball guy has done it again
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JEP 8359802 ("Ergonomics Always Select the G1 Garbage Collector as Default") added. See
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Does anyone know why async-profiler on Linux throw an exception "Cannot parse argument 'vmx' of option cstack" but with agent https://t.co/f5eZisXff3 it works fine? @AndreiPangin Maybe you are the best person for that question :) Can you help me?
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In JDK 25, we improved the performance of the class String in such a way that the String::hashCode function is mostly constant foldable. Learn more: https://t.co/rcAhTi8UmS
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JEP 515 ("Ahead-of-Time Method Profiling") updated: Status changed from "Proposed to target for version 25" to "Targeted for version 25". See
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JEP 8350338 ("Cooperative JFR Sampling") updated: Status changed from "Draft" to "Submitted". See
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The issue with Kafka transactions https://t.co/9P2ePOiQyT
#kafka
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JEP 483: Ahead-of-Time Class Loading & Linking is coming to #jdk24 It will allow to improve startup time by using a previous training data on your program’s classes. The training data is stored in a an AOT cache. Cache file can be huge. https://t.co/gGqVTweVCz
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Looking forward to this.
JEP401 Early Access 1: https://t.co/tKjEQtcbsL ...language model complete. There is a performance EA due, and then mainline, it's getting real. #OpenJDK #Java #ProjectValhalla ( https://t.co/w57P9bbpc6)
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Say hello to bpftop! Our new open source command-line tool for real-time monitoring and performance optimization of #eBPF applications https://t.co/VkrVnrGivL
netflixtechblog.com
By Jose Fernandez
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Uwaga❗️❗️❗️ Ostrzegamy przed kampanią telefoniczną 📞 Oszuści podszywają się pod pracowników ZUS, informują o nieopłaconych składkach i wypytują o nazwę banku🏦 Mając takie informacje mogą opracować bardziej spersonalizowany plan oszustwa 🫵
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Call for Discussion: New Project: Skogsluft "This project aims to introduce advanced profiling features that bridge the gap between Java and native code execution, and offer more precise and flexible profiling options." @OpenJDK #JFR @javamissionctrl
https://t.co/IAn34hgpXU
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OpenJDK is starting to use the Foreign Function & Memory api for internal use cases as a replacement for JNI - this should help validate and improve FFM https://t.co/n6DzkvkSxL
github.com
Progress Change must be properly reviewed (1 review required, with at least 1 Reviewer) Change must not contain extraneous whitespace Commit message must refer to an issue Issue JDK-8318364: ...
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Wrote a short blog post on the subject as well. A follow up to the Hazelcast Jet blog-series from a few years back. Check it out on: https://t.co/qgF50EuzrD
#ZGC #OpenJDK #Java
kstefanj.github.io
A few years ago the developers of Hazelcast Jet decided to try out the different GC alternatives available at the time. The result was this blog-series from 2020 and the results for ZGC looked very...
With the low-latency garbage collector ZGC, GC pause times are no longer a big problem in Java. At #P99CONF, @kstefanj explained how adding generations to ZGC helps lower the p99 application latencies. Check out his on-demand session for free! https://t.co/mDKFUbvsQX
#ScyllaDB
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