Java performance tutorials and videos

Think About Memory: How to Write Fast Java Code

java-tv.com — Mon, 04 Sep 2023 16:27:38 +0000

This presentation discusses things that affect (CPU bound) performance of Java code. A key message is that Java developers DO need to worry about memory, even if garbage collection rarely is a problem. Video producer: https://www.jfokus.com

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Performance Testing Java Applications

java-tv.com — Mon, 24 Apr 2023 21:20:58 +0000

Every so often, you will read a performance benchmark (of a Java or other language application), with bold claims for how well X performs compared to Y. Testing the performance of your Java application is more an art form rather than engineering, and is a minefield of misconceptions, misunderstanding, and …

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Secrets of Top Performance in Java

java-tv.com — Wed, 06 Nov 2019 16:05:52 +0000

What are the key factors of the performance of your Java code? First one is related to constructs and libraries used in your implementation. Are your constructs result in simple or complex bytecode? What complexities are added by used features and libraries? We will examine the performance and complexity of …

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Java Production Profiling

java-tv.com — Wed, 06 Feb 2019 20:37:35 +0000

We all want to understand what our Java application is really doing in production, but this information is normally invisible to developers. Profilers tell you what code your application is running but few developers profile and mostly on their development environments. Thankfully production profiling is now a practical reality that …

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An Empirical Analysis of Java Performance Quality

java-tv.com — Tue, 10 Jul 2018 18:43:09 +0000

Being a popular object-oriented programming language, computer scientists have consistently searched for ways to optimize and improve Java performance utilizing a variety of methods. Methods including the Just-in-time compilation, the garbage collection system, and adaptive optimizing have increased Java performance by reclaiming unneeded memory and optimizing areas of frequently executed …

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Making Java Profilers Lie Less

java-tv.com — Tue, 24 May 2016 14:57:58 +0000

In this presentation, Jaroslav Bachorik of Oracle discusses the different types of java profilers (sampling and instrumenting) and common problems with them. https://vimeo.com/146371620 Video producer: http://geecon.org/ Slides and code: https://github.com/jbachorik/geecon2015

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High Performance Java EE with JCache

java-tv.com — Tue, 08 Mar 2016 07:45:36 +0000

Do you need more performance from your Java EE applications? Is latency causing you stress? If so, take a look at JCache, the Java caching API. This code-driven session demonstrates how to integrate JCache into your Java EE applications, using CDI. JCache (JSR 107), the new standard API for cache …

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Biggest Mistakes for Java Performance

java-tv.com — Thu, 11 Feb 2016 14:27:33 +0000

After a quick intro to the problem of bad quality code itself, we walk through 6 specific examples of broken applications from a performance, scalability and architectural perspective. Each example highlights the impact of quality, the root cause and the technical metric to look at before checking in code to …

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High Performance Lists in Java

java-tv.com — Wed, 14 Oct 2015 17:13:50 +0000

The classes of the Java Collections Framework belong to the most used part of the JDK. But can the offered list implementations really be used for all purposes? The most used class ArrayList has not only a minimalistic API but also serious performance weaknesses. The first part of the session …

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Java Garbage Collector Performance Fundamentals

java-tv.com — Tue, 17 Mar 2015 08:42:54 +0000

Most of the Java garbage collection performance and tuning information available on the Internet and periodical tends to be very specific to either a garbage collector or specific to application symptoms. This presentation takes that myriad of information and boils it down to a set of fundamentals and principles. Coming …

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