Java program performance optimization is an “optimization technology”, which is worth exploring all the time.
In this article we will systematically introduce the basic concepts of performance, two important laws (the barrel principle and Amdahl’s Law), and the general process and considerations of system tuning. Next we’ll look at performance-related design patterns, components, and software design ideas that can help improve performance.
Then we’ll cover how to write high-performance Java code at the code level. The main content involved is the optimization of string processing, file IO optimization, the use of core database structure, Java reference types and some common conventions, etc.
Next, you’ll learn about parallel program development and how to improve system performance through multithreading. Concurrency design patterns, thread pools, the use of concurrent data structures, concurrency control methods, “lock” optimization, the use of lock-free and coroutines are introduced.
Finally, I’ll show you how to improve the performance of your Java application by setting the proper JVM parameters. It also covers tools for capturing and monitoring application or system performance metrics, as well as Java application-specific troubleshooting tools.
The following will show you the PDF version of alibaba P8’s “Learning Diary”. Due to the limited space of this article, the following will show you the contents of the catalog and some high-quality excerpts. The full version can be obtained free of charge by clicking here with screenshot.
Overview of Java program performance optimization
Optimization of design
Java program optimization
Parallel program development and optimization
JVM tuning strategies
Java performance tuning tool
Quality content screenshots
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