Java performance tuning

Java performance tuning is a function of many things, such as code, networks, hardware (client configuration, memory, CPU speed, storage capacity, etc.) and databases. It is almost impossible to predict exactly where a performance tuning failure might occur. Performance tuning tools allow you to take applications to their point of failure by using virtual users. Java performance tuning must be precise to simulate concurrent load at exactly the same instant. With manual performance tuning, human reaction times simply can't achieve and maintain the same level of concurrency as seen with automated tools. Find the latest information and tuning best practices in this topic section.

February 08, 2022 08 Feb'22
How to convert a PEM file to PPK format

Need to SSH into a remote server with PuTTY but your PEM file just won do the trick? Here's a quick example of how to convert a PEM file to PPK format with PuTTYGen so your SSH sessions with PuTTY ...
January 29, 2021 29 Jan'21
Java Mission Control 8 Eclipse plugin install

Here's a quick Java Mission Control tutorial to show you how to install the Java Mission Control Eclipse plugin and start a Java Flight Recorder JVM profile run.
December 29, 2020 29 Dec'20
The performance cost of autoboxing Java primitive types

The boxing and unboxing of Java primitive types has severe performance implications. Uncover the truth about autoboxing Java primitive types in this JDK Mission Control and JVM Flight Recorder example.
May 07, 2020 07 May'20
Oracle's Project Leyden uses static images to ease Java pain

Oracle's new Project Leyden introduces static images to help ease long-standing Java language shortcomings such as slow startup times and unwieldy footprints.

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Java garbage collection interview questions and answers

From stop-the-world events to the impact of JVM pause times, these are the Java garbage collection questions and answers developers need to know before an interview. Continue Reading
Test your knowledge of JVM profiling tools with this quiz

Since their inclusion in Java 11, Java Flight Recorder and JDK Mission Control have become the de facto Java profiling tools for the JVM. Test your knowledge with these 10 questions. Continue Reading
Java Flight Recorder

Java Flight Recorder is a Java Virtual Machine (JVM) profiler that gathers performance metrics without placing a significant load on resources. Continue Reading

Weigh the pros and cons of technologies, products and projects you are considering.

How do Java sampling and JVM instrumentation differ?

These two approaches both aim to improve Java performance and can be done together. But there is a fundamental difference between instrumentation and sampling. Continue Reading
HashMap vs. Hashtable: Which map should you choose?

When HashMap replaced Hashtable as part of the Java 1.2 release, it moved away from how developers previously used the collections API and Java maps. Continue Reading
Take advantage of these 5 benefits of server-side rendering

From performance improvements to browser compatibility, here are five reasons why you should use server-side rendering technologies in your next web project. Continue Reading

Learn to apply best practices and optimize your operations.

5 Java performance profiling tips to help tune your JVM

Check out these Java performance tips, such as which profiling tool to use, what data you need to save as part of your CI/CD pipeline and how to incorporate AI. Continue Reading
5 helpful tips to reduce webpage load time, improve performance

Nobody wants to wait for a webpage to load. Follow these tips to reduce website load time and improve the user experience for a better online persona. Continue Reading
6 top webpage performance metrics to monitor

Webpage performance is paramount for digital success. To monitor webpage performance, use these top six metrics. Continue Reading

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5 ways to force Java garbage collection

A developer can't technically force garbage collection in Java, but it can be made a priority. If you need to free up heap space, here are five ways to prioritize it in the JVM. Continue Reading
Top 3 website performance issues and how to fix them

It's amazing how even in 2020, you can visit an established organization's homepage, only to encounter serious website performance issues that could easily be fixed if the developers and designers ... Continue Reading
Are production performance problems plaguing your work?

ZeroTurnaround's Jevgeni Kabanov clarifies the three major pain points for production performance and how best to avoid them. Continue Reading