[Перевод] Почему Java Streams тормозят, даже когда ядер много
Команда Spring АйО подготовила перевод статьи в которой автор разбирает, где параллельные стримы действительно масштабируются, а где создают накладные расходы, конкуренцию за ресурсы и иллюзию производительности. Коротко: сначала аналитика и измерения, потом — параллелизм.
🎙️ #InfoQ #podcast - Simon Ritter, Deputy CTO at Azul, dives into the latest innovations in OpenJDK - and shares insights from his experience serving on the JCP Expert Group since JDK 9.
💡 Topics include:
• The six-month release cycle
• Generational Shenandoah
• JDK Flight Recorder
• Project Leyden
• Compact Object Headers
🎧 A must-listen for Java developers: https://bit.ly/4qiEIwZ
Still making sequential remote calls even with #VirtualThreads? @chwoerz explains how StructuredTaskScope cuts latency by running tasks concurrently—without reactive complexity. Curious how it works?
#Quarkus, Mandrel & #CRaC form a high-performance stack for native #Java apps in #Kubernetes. @sascha242 & Yuriy Bezsonov detail the build process, container setup & tips for minimal resource use.
Read: https://javapro.io/2025/08/19/modernize-java-applications-with-amazon-eks-a-cloud-native-approach/
@QuarkusIO #AmazonEKS #GraalVM #JVM #SpringBoot
Fray Detects #Concurrency Issues in #JVM Languages
https://www.infoq.com/news/2025/12/fray-detects-concurrency-issues/
🎬 In a world… where #code fills the screen…
One day. Six #workshops. Infinite “aha!” moments.
🎟️ Book now for April 20 – and yes, you can recast your ticket if the plot changes.
Seats are #limited. Roll camera.
https://2026.europe.jcon.one/workshops
#JCON2026 #Java #CinemaCode #JVM
Now thats a good reason to look at #jvm in 2025
From P2P to Web Services and Grids : Peers in a Client/Server World
#book recommended for#p2p
> With pass-by-reference, all methods on the object are remote calls. That lets the remote object have access to the server’s resources and services and, because multiple clients can talk to the same object on the server, changes made to that object’s state by one client are visible to all clients. However, all the problems of network communications — latency, disconnects, and time-outs, for example — still apply.
https://www.infoworld.com/article/2162628/get-smart-with-proxies-and-rmi.html
RMI enables developers to either get a remote reference to a distributed object, in which all method calls are forwarded to the server object, or get a copy of the remote object and invoke on it locally. Sometimes, however, it is desirable to combine those approaches, so that some method calls execute locally, while others execute on the remote object. This article describes a method to accomplish that in a way that is transparent to the client code.
Tired of guessing JVM performance? Tôi đã tự xây dựng một Java Agent từ đầu — vtracer. Không còn log nhồi, không đoán mò: gắn vào JVM đang chạy, theo dõi method, phát hiện virtual thread pinning, lấy mẫu thông minh (10%), xuất báo cáo JSON. Học Instrumentation API, ByteBuddy, Attach API và JFR qua thực tế. Hiểu JVM thật sự hoạt động ra sao, chứ không chỉ dùng framework.
#Java #JVM #Performance #Monitoring #Bytecode #VirtualThreads #Java21 #APM #DevTools #vtracer
#Java #JVM #HiệuSuất #GiámSá
Habr
Wednesday Links
InfoQ
JAVAPRO
Nicolas Fränkel 🇪🇺🇺🇦🇬🇪
JCON
HoldMyType