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HomeBackend DevelopmentGolangWhat should I do if the golang package is too large?

Golang, as a fast and concise programming language, is becoming more and more popular among developers. When developers use Golang, they sometimes encounter a problem that the packaged binary file is too large. This article will explore this problem and provide some solutions.

1. The reason why the Golang package file is too large

  1. Static link

Golang uses static linking, which means that the binary file will contain the complete program and dependency packages. This makes the binary very large, especially if it references a large number of other dependent packages.

  1. Compilation flags

Golang provides some compilation flags to enable certain features or optimizations. However, there are some flags that cause binaries to become larger. For example, turning on the strip flag with "-s" strips debugging information but increases the size of the binary.

  1. Third-party packages

When using third-party packages, developers often need to introduce a large dependency package, making the binary file larger.

2. How to reduce the size of Golang binary files

  1. Use dynamic link

Although Golang uses static linking by default, you can use dynamic linking to reduce the size of the binary file. Using the "-ldflags=-linkmode=external" option during compilation to link the program's dependencies to the dynamic library can make the binary file smaller.

  1. Optimization compilation flags

Use some optimization flags, such as "-gcflags=-trimpath=$GOPATH/src" to remove the source code directory, or use "-ldflags =-w -s" can remove debugging information and symbol tables, thereby reducing the size of the binary file.

  1. Streamline the application

Reduce the size of the application by changing the logic of the application to reduce unnecessary code and functions. For example, some unnecessary libraries or dependencies can be removed manually or trimmed during compilation.

  1. Use relatively few third-party libraries

When using third-party libraries, you should try to use commonly used libraries to avoid using too many dependent packages, thereby reducing the number of The size of the application.

  1. Use UPX compression tool

UPX is an open source compression tool that can compress the size of binary files. Using UPX compression can reduce the size of the binary file, but may make the program run slower.

3. Summary

Golang, as a programming language that provides high performance, also provides a variety of solutions to the problem of too large package files. Based on the actual situation, developers should choose an optimization solution that suits them to deal with the problem of excessively large files.

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