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Is Java Virtual Threads lightweight?

Quick answer is 'yes' :-). Before you try to understand how lightweight Java virtual threads are, you might want to understand how Java virtual thread works? Here is a post that gives a quick introduction to Java virtual threads. We... Continue Reading →

Advantages of Java Virtual Threads

Java virtual thread is a new type of threading model architecture introduced in JDK 19. Before you try to learn the benefits of Java Virtual Threads, you might want to understand how Java virtual thread works. Here is a post... Continue Reading →

APIs to create Java Virtual Thread

Java virtual thread is a new feature available from JDK 19. It has potential to improve an application’s availability, throughput and code quality on top of reducing memory consumption. If you are interested in learning more about Java virtual thread,... Continue Reading →

Java Virtual Threads – Easy introduction

Java virtual threads is a new feature introduced in JDK 19. It has potential to improve an applications availability, throughput and code quality on top of reducing memory consumption. This post intends to introduce java virtual threads in an easily... Continue Reading →

Java Hashtable, HashMap, ConcurrentHashMap – Performance impact

There are a good number of articles that articulate functional differences between HashMap, HashTable and ConcurrentHashMap. This post compares the performance behavior of these data structures through practical examples. If you don't have patience to read the entire post, here... Continue Reading →

Java UUID generation – Performance impact

Java developers tend to use 'java.util.UUID#randomUUID()' API, to generate a UUID (Universally Unique Identifier) number (i.e., 'b8bbcbed-ca07-490c-8711-5118ee0af2f9'). Under certain circumstances, using this API can affect your application’s availability. Let’s discuss this API in this post with a real-world example. Video:... Continue Reading →

16 artifacts to capture when there is a production problem -Montreal 2022

ConFoo Montreal is a multi-technology conference for developers. Our Architect Ram Lakshmanan has been invited there to present on the topic "16 artifacts to capture when there is a production problem", which has secured 5th place among 155 sessions. Production... Continue Reading →

Overhead added by collecting thread dumps

A thread dump is a snapshot of all the threads running in a java process. It’s a vital artifact to troubleshoot various production problems such as CPU spikes, unresponsiveness in the application, poor response time, hung threads, high memory consumption.... Continue Reading →

Threads stuck in java.net.SocketInputStream.socketRead0

What does java.net.SocketInputStream.socketRead0() API do? Why is it showing up frequently in several thread dumps? Why is it reported in thread dump analysis tools like fastThread.io? Is it something that I need to be concerned about? What are the potential solutions... Continue Reading →

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