Trace Link: A Comprehensive Guide to Tracing and Debugging Tools

Tracing and debugging tools are essential for developers to understand and optimize their code. Whether you are working on a complex Node.js application or a simple Android app, these tools can help you identify performance bottlenecks, bugs, and other issues. In this article, we will explore various tracing and debugging tools, their features, and how to use them effectively.

1. Trace Tool for Node.js

The trace tool is a powerful debugging tool for Node.js applications. It helps developers track and analyze the execution path of their code. Developed by Andreas Madsen, trace is designed to be simple yet powerful, making it easier to understand and optimize your Node.js applications.

To get started with trace, follow these steps:

1. Install trace using npm:

npm install trace

2. Import trace in your Node.js project:

const trace = require(‘trace’);

3. Enable tracing:

trace.enable();

4. Run your application:

node your-app.js

By following these steps, you can start using trace to track the execution path of your Node.js application.

2. Arthas Trace Command for Java

Arthas is a powerful Java troubleshooting and performance diagnostic tool. The trace command in Arthas allows you to track and analyze the execution of Java methods, helping you identify performance issues and bugs.

Here’s how to use the trace command in Arthas:

1. Install Arthas on your Windows machine:

Download and extract the Arthas package from here.

2. Start the Arthas agent:

Open a command prompt, navigate to the extracted folder, and run the following command:

java -jar arthas-boot.jar

3. Select the program you want to monitor:

After starting Arthas, you will see a list of programs you can monitor. Select the program you want to monitor by entering its number and pressing Enter.

4. Use the trace command:

type ‘trace 绫诲悕 鏂规硶鍚? to trace the execution of a specific method.

5. Call the interface:

Use a tool like Postman to call the interface, and you will see the trace output, which includes the method call chain and its execution time.

3. Trace Tool for MySQL

The trace tool in MySQL is used to analyze the execution plan of a query. It helps you understand how MySQL executes a query and identify potential performance issues.

Here’s how to use the trace tool in MySQL:

1. Enable tracing:

SET GLOBAL trace = ‘YES’;

2. Execute a query:

SELECT FROM your_table;

3. View the trace output:

SELECT FROM information_schema.trace;

The trace output will show you the execution plan of the query, including the cost of each operation and the time taken for each operation.

4. Trace Tool for Android

Perfetto is a powerful tracing framework for Android. It allows you to capture and analyze trace data from your Android device, helping you identify performance issues and bugs.

Here’s how to use Perfetto to capture trace data:

1. Enable trace service:

On Android 9 (P) and 10 (Q), you need to manually enable the trace service by running the following command:

adb shell setprop persist.traced.enable 1

2. Capture trace data:

You can capture trace data using the following methods:

• Command-line:

adb shell /system/bin/perfetto trace start

• Perfetto UI:

Open the Perfetto UI and start capturing trace data.

5. Trace Tool for Oracle

The 10046 SQL trace is