Java Performance

• Programming in Java

Audience

• Java programmers

The course is intended for Java programmers who want to produce efficient applications. After consultation with client, the course can be conducted in a special tool version, for people who only need to detect performance problems (testers, administrators) - in this case programming in Java is not required.

During the training, participants will learn about process and modern tools for producing efficient software in Java. They learn performance-related traps, benchmarking, profiling, tuning, memory analysis, performance tricks using collections or IO. Learned topics and tools are applicable regardless of the technologies used in the project, because we focus on language-level performance, tools and embedded libraries. Tuning discusses parameters of JVM provided by Oracle.

Introduction

Java Virtual Machine Performance overview

• Java memory model
• Just In Time Compiler
• Performance methodology

Java Garbage Collection

• GC Basics
• Garbage Collecting Algorithms
• Types of GC Collectors

JVM Monitoring

• command line monitoring
• Java Flight Recorder and Mission Control
• Profiling tools

Microbenchmarking

• JMH microbenchmark framework
• creating and configuring a benchmark
• execution and result interpretation

JVM Tuning

• Memory tuning
• Choosing GC type

Summary and Next Steps