Shortcut to golang function debugging and analysis
May 06, 2024 pm 10:42 PMThis article introduces shortcuts for Go function debugging and analysis, including: built-in debugger dlv, which is used to pause execution, inspect variables, and set breakpoints. Logging, use the log package to log messages and view them while debugging. Performance analysis tool pprof, generate call graph and analyze performance, use go tool pprof to analyze data. Practical case: Use pprof to analyze memory leaks and generate a call graph to display the functions that cause leaks.
Shortcuts to Go function debugging and analysis
Go’s debugging and analysis tools are very powerful and can help developers quickly identify and analyze Solve the problem. This article will introduce some convenient methods for Go function debugging and analysis, and provide practical cases.
1. Built-in debugger
Go has a built-in interactive debugger that can be started through the dlv
command. It allows developers to pause program execution, inspect variable values, set breakpoints, and more. For detailed usage, please refer to [Official Documentation](https://go.dev/dlv).
2. Logging
Logging is an important tool for debugging and analysis. Go has a built-in log
package that can be used to log messages. For example:
package main import ( "fmt" "log" ) func main() { name := "John" age := 30 log.Printf("Name: %s, Age: %d", name, age) }
When debugging using dlv
, you can view logged messages in the log file.
3. Performance Analysis
pprof
is a Go tool for performance analysis. It can generate call graphs and analyze application performance bottlenecks. Usage:
import ( "net/http/pprof" "runtime" ) func main() { // 在特定端口啟用 pprof。 go func() { http.ListenAndServe(":6060", nil) }() // 運(yùn)行應(yīng)用程序。 runtime.Run() }
Then, you can use the go tool pprof
command to analyze the performance data.
Practical case
Problem: A Go function has a memory leak when processing big data.
Solution:
Use pprof
to analyze memory usage:
go tool pprof http://localhost:6060/debug/pprof/heap
pprof
will generate A call graph showing the functions that caused the memory leak.
Tip:
-
dlv
The debugger also supports remote debugging, allowing developers to debug applications in containers or cloud environments. -
pprof
Provides a variety of analysis tools, including CPU analysis and trace analysis. - There are also many third-party debugging and analysis tools available for the Go language, such as [Badger](https://github.com/derekparker/badger) and [go-trace](https://github.com /uber/go-trace).
The above is the detailed content of Shortcut to golang function debugging and analysis. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

What are the key points of the catalog? UselessCoin: Overview and Key Features of USELESS The main features of USELESS UselessCoin (USELESS) Future price outlook: What impacts the price of UselessCoin in 2025 and beyond? Future Price Outlook Core Functions and Importances of UselessCoin (USELESS) How UselessCoin (USELESS) Works and What Its Benefits How UselessCoin Works Major Advantages About USELESSCoin's Companies Partnerships How they work together

This article has selected several top Python "finished" project websites and high-level "blockbuster" learning resource portals for you. Whether you are looking for development inspiration, observing and learning master-level source code, or systematically improving your practical capabilities, these platforms are not to be missed and can help you grow into a Python master quickly.

As a pioneer in the digital world, Bitcoin’s unique code name and underlying technology have always been the focus of people’s attention. Its standard code is BTC, also known as XBT on certain platforms that meet international standards. From a technical point of view, Bitcoin is not a single code style, but a huge and sophisticated open source software project. Its core code is mainly written in C and incorporates cryptography, distributed systems and economics principles, so that anyone can view, review and contribute its code.

There are three main ways to set environment variables in PHP: 1. Global configuration through php.ini; 2. Passed through a web server (such as SetEnv of Apache or fastcgi_param of Nginx); 3. Use putenv() function in PHP scripts. Among them, php.ini is suitable for global and infrequently changing configurations, web server configuration is suitable for scenarios that need to be isolated, and putenv() is suitable for temporary variables. Persistence policies include configuration files (such as php.ini or web server configuration), .env files are loaded with dotenv library, and dynamic injection of variables in CI/CD processes. Security management sensitive information should be avoided hard-coded, and it is recommended to use.en

The core role of Homebrew in the construction of Mac environment is to simplify software installation and management. 1. Homebrew automatically handles dependencies and encapsulates complex compilation and installation processes into simple commands; 2. Provides a unified software package ecosystem to ensure the standardization of software installation location and configuration; 3. Integrates service management functions, and can easily start and stop services through brewservices; 4. Convenient software upgrade and maintenance, and improves system security and functionality.

Solana's strong recovery: Can the surge in developers and meme coin carnival drive last? In-depth interpretation of trends Solana is making a comeback! After a period of silence, the public chain has rejuvenated again, the coin price continues to rise, and the development community is becoming more and more lively. But where is the real driving force for this rebound? Is it just a flash in the pan? Let's dig into the current core trends of Solana: developer ecology, meme coin fanaticism and overall ecological expansion. Behind the surge in coin prices: Real development activities have recovered Recently, SOL prices have returned to above $200 for the first time since June, causing heated discussions in the market. This is not groundless - according to Santiment data, its developers have reached a new high in the past two months. this

This article has selected a series of top-level finished product resource websites for Vue developers and learners. Through these platforms, you can browse, learn, and even reuse massive high-quality Vue complete projects online for free, thereby quickly improving your development skills and project practice capabilities.

To enable PHP containers to support automatic construction, the core lies in configuring the continuous integration (CI) process. 1. Use Dockerfile to define the PHP environment, including basic image, extension installation, dependency management and permission settings; 2. Configure CI/CD tools such as GitLabCI, and define the build, test and deployment stages through the .gitlab-ci.yml file to achieve automatic construction, testing and deployment; 3. Integrate test frameworks such as PHPUnit to ensure that tests are automatically run after code changes; 4. Use automated deployment strategies such as Kubernetes to define deployment configuration through the deployment.yaml file; 5. Optimize Dockerfile and adopt multi-stage construction
