OUR
Courses
Description
With training courses such as performance tuning, it is very important that our trainers have decades of professional experience in Java projects and therefore have practical experience and knowledge, which is indispensable for such practically oriented training courses.
In this training you will learn to understand Java's Garbage Collector, to look into Java Runtime memory using various tools and to understand the information acquired. Using this information, you will learn how to track down memory leaks and identify performance deficits in an application.
Our trainers always give you the opportunity to influence the content of the training and are happy to bring examples that would help you best for your specific situation in your company
Course topics
Structure of the JVM
- How the heap, metaspace, stack works
- How garbage collection works
- Explanation of the different garbage collectors of the JVM (single threaded, parallel, concurrent mark sweep, G1)
- How the HotSpot compiler works
Monitoring the JVM
- Command line tools for monitoring the JVM
- UI tools for monitoring the JVM
- Remote monitoring including encryption and authentication
Monitoring of heap memory and garbage collection
- Memory leak detection
- Avoid overflowing the metaspace
- Detection of high lock contention
- Deadlock detection
Creating heapdumps
- Analysis of heap dumps
- Anfertigen von Threaddumps
- Analysis of thread dumps
Configuration of the JVM
- Configuration of the heap and stack
- Configuration of garbage collection
- Go through all documented JVM configuration options
Profiling the JVM
- Profiling with JVisualVM
- Profiling with Java Mission Control and Flight Recorder
Recognizing IO problems
- Identifying multithreading problems
- Identify critical application parts
Tomcat
- Monitoring Tomcat specific parameters
- Configuration of thread pools and database connection pools
- Other configuration options
Load testing with Apache JMeter
- Load generators and measurement of the response time behavior with Apache JMeter
Configuration of the JVM under Kubernetes
- Resource restriction configurations in Kubernetes
- Special features when operating the JVM under Kubernetes / Docker
GraalVM
- Installation and configuration of the GraalVM
- Performance tests to compare with the Hotspot VM
- Native compilation of Java applications with the GraalVM
- exercises
- In the training, the participants are continuously given exercises in which they simply have to analyze applications with the knowledge they have acquired and thus find out the respective problems of the application.
Trainers
At the heart of our work is our enthusiasm for technologies, the satisfaction of our customers, and the resulting relationship of trust.
Mag. DI Löwenstein
Bernhard Löwenstein holds a Master's degree in Computer Science and Information Management from TU Wien. He has worked for almost two and a half decades as a developer, trainer, and consultant for Java and related frameworks.
Certified Java, Javascript, Spring and Angular Developer
DI Schaffler-Glößl
Michael Schaffler-Glößl holds a degree in Computer Science from TU Wien. For more than 30 years, he has worked as a software developer, consultant, and trainer for Java, Spring, Java EE, microservices, NoSQL databases, Docker, Kubernetes, Angular, AI, and other topics.
Certified Java 21, Javascript, Spring, JEE and Angular Developer and Architect
Ben Rowley
Mr. Rowley works as a Senior Software Developer & Trainer for Java, Spring and AI.
Mr. Rowley has extensive experience in the field of artificial intelligence and its integration into enterprise applications.
