Peter Lawrey Talks about Low-Latency, High-Performance Java
Build a realistic workload, profile it, and tune the code if possible, or the JVM to optimise for that use case.
Performance
Timing Compiling .java Code Files and Executing .class Bytecode
See that the time to execute the bytecode for a simple program is a small fraction of the time to compile it using javac.
Startup Speed of Spring and Quarkus JARs on the Raspberry Pi
The same application was developed in both Spring and Quarkus. The average startup speed of my Quarkus JAR is 3 to 4 times faster compared …
What is JVM Bytecode?
Everyone who programs in Java is familiar with the term "bytecode". But how many of us understand what JDK bytecode actually is?
Useful Hotspot JVM Options for Today: Heap Sizing
The HotSpot JVM has a lot of options available. I have summed up here some of the most useful JVM options in the context of heap sizing.
Why the JVM Is a Brilliant Platform for New Programming Languages
The capability of the JVM to overcome problems related to hardware and operating systems is why we're seeing inventions of new languages on …
JmFrX: A Bridge From JMX to Java Flight Recorder
Announcement of a new open-source utility: JmFrX, a tool for capturing JMX data with Java Flight Recorder, making it available for offline …
Stream.concat vs. New ArrayList Performance
What happened when the Java Stream API met the ArrayList? Which is faster and more performant? Read on to find out about some initial …
Monitoring REST APIs with Custom Java Flight Recorder Events
Let's explore how custom, application-specific JFR events are used to monitor a REST API, to track request counts, identify long-running …
Container Awareness for Java Developers Today
When you containerize a Java application, make sure your base JDK image is container-aware so that the JDK can allocate memory and CPU …