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Introduction

Use the Kunpeng DevKit Java Profiler to perform real-time profiling and sampling profiling on a running Java program, locate program problems, and tune the program based on the analysis results to achieve optimal running of the Java program.

Networking Environment

**Table 1** Networking environment
Item	Description
CPU	Kunpeng 920
OS	CentOS 7.6
Tool	Kunpeng DevKit
Practice demo	Link

Tuning Strategy

Use the Java Profiler to perform real-time profiling on the Java process.
Use the Java Profiler to perform sampling profiling on the Java process.
Tune performance to address the bottlenecks.
Observe the optimized Java program to check whether the problem is solved.

Parent topic: Practice 5: Tuning GC Triggered by G1 Humongous Objects