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HomeBackend DevelopmentGolanggolang program is too big

In recent years, the Go programming language has been widely used in cloud computing, big data, artificial intelligence and other fields because it has many excellent features, as well as fast compilation and good memory management. However, when developing some large-scale projects, we often encounter a problem: the golang program is too large. So why does this happen? This article will explain the causes of this problem and give some solutions.

Cause of the problem

When developing golang applications, we usually import some third-party libraries in order to use the tools, methods and services they provide. This makes our code smoother and more efficient without having to write every function from scratch. However, this convenience comes with a problem: bag size.

When you import a library, the Go compiler compiles all of the library's code and its dependencies into a binary file. This means that if the library's code is large or it depends on many other libraries, the final executable will also become large.

For example, if you use some popular third-party libraries in your application, such as gin, gorm, gRPC, etc. Then, even if your application is very simple, the final executable file may reach tens or even hundreds of megabytes in size.

Solution

In order to solve the problem of the golang program being too large, we need to consider some solutions. Some possible methods are listed below.

  1. Streamline third-party dependency packages

‘One way is to simplify your dependency packages. This may reduce the package's code and thus the final executable size. However, this may reduce the quality of your application by leaving some important features missing from your application. Therefore, this solution should be carefully considered.

  1. Use different compilation architectures

When you compile your application, you can use different architecture compilers and flags to reduce the size of the executable file. For example, on a Linux system, using static linking may be more useful than dynamic linking. You can also use the -s and -w flags to remove the symbol table and debugging information, thereby reducing the size of the executable file.

  1. Use UPX compression

UPX is an executable file compressor that can reduce the size of executable files, which is useful for applications that need to be deployed in different environments Very useful for cloud infrastructure of programs. In Golang, we can use the go-bindata and go-rice tools to package resource files into executable files, and then use UPX to compress them.

  1. Using Docker images

Docker images make application deployment very convenient. By packaging your application and its dependencies into a Docker image, you can reduce file size and network traffic during deployment. Using Docker, you can write a Dockerfile that downloads and installs all necessary dependencies and builds a very small container image.

Summary

In this article, we learned the reasons why golang programs are too large and some solutions. While each method has its pros and cons, depending on your needs, you can choose the method that works best for you to reduce file size. Whatever method you choose, its impact needs to be evaluated in detail to ensure the quality and reliability of your application.

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