How We Beat HotSpot Performance (By Cheating, But Not Like That)
ParparVM went from 4.21x slower than warmed Java 25 to geomean parity, with six of ten benchmarks at or below HotSpot and peak memory below …
Friends Of OpenJDK Today
Every article on foojay.io, newest first: OpenJDK, the JVM, Java tooling and the ecosystem around them, written by the Java community.
782 viewsWarm Up Fast, Run Lean: Vertical Scaling for Java on Kubernetes with Azul Prime and Kedify
Autoscaling on Kubernetes has evolved significantly, but many production systems still rely on reactive scaling based on CPU and memory …
Your Loom App Quietly Became a Thread Pool Again: A Field Guide to Virtual Thread Pinning
The incident that taught me to respect pinning looked like nothing. A service freshly migrated to virtual threads, a load test that …
BoxLang 1.15.0 Released: Blazing Fast Strings, Runtime Portability, and much more
BoxLang 1.15.0 is a high-impact release with two big headlines and a long tail of hardening. The first headline is a massive performance …
I Asked GitHub Copilot to Profile a Java App. It Found a Bug in My Heap Sizing, and Offered to Fix It
I built an extension to collapse the entire loop of running and measuring the performance of Java workloads, so it can be used within a …
732 viewsFoojay Podcast #100: Java Podcasters on Why They Started, What Broke, and What They Learned
Foojay Podcast hits episode 100. No plan, no roadmap. It just happened. To mark the occasion, Frank turned the microphone around and invited …
Temporal Is to Your Code What a Database Is to Your Data
Your database made your data durable. Temporal does the same for your code.
When NOT TO USE Event-Driven Architecture (EDA)
Learn when not to use Event-Driven Architecture (EDA), from simple CRUD apps to strong consistency, immediate responses, and operational …
More Surfaces, Same Deal: Cars, Sensors, Commerce, Video And Builds
This week's release adds car dashboards, motion sensors, desktop-class input, foldables, Commerce, Secrets, versioned builds, and real video …
"This Can't Possibly Work": What I Learned at a Temporal.io Workshop
When developers first hear about Temporal, they tend to move through a predictable sequence of emotions. First comes disbelief — the claim …