Java EE 7 Performance Tuning and Optimization

Chapter 5. Recognizing Common Performance Issues

Before we dig more into the profiling tools and how to interpret the results in the coming chapters, we need to highlight some of the most frequent performance issues that we could face. In this chapter, we will go through different performance issues, classify them into different categories, and then discuss the most common issues briefly.

Here is a list of topics that we will cover in this chapter:

• Slow response time umbrella
• Threading performance issues
• Memory performance issues
• Work as designed performance issues
• Miscellaneous performance issues
• Client-side performance issues

Going through a slow response time umbrella

In general, performance issues mean an impact on the application response time. It ...