Is golang packaged big?

As a modern programming language, Golang has always been highly praised, especially in high-concurrency and high-performance scenarios. So, as developers, when we use Golang for packaging, do we need to consider the size of the package? This article will discuss this issue.

First, let’s look at some existing data. When using Golang for packaging, the size of a simple hello world program is less than 2MB, while a more complex project may exceed dozens of MB. However, compared to other languages, Golang's package size is usually smaller. For example, packaging using Java will generate huge JAR files. In some cases, it is even necessary to use a build tool like Maven to separate and manage the package.

The reason why Golang can achieve such results is mainly due to the following two reasons:

1. Static linking

Static linking refers to the program The libraries and code required to run are all packaged in a single binary. Therefore, when using Golang for packaging, the packaged program size can be effectively reduced with the help of static linking technology. In contrast, when using dynamic linking for packaging, you need to rely on external library files, which may increase the size of the package.

2. Go language design itself

Golang itself is a language designed to pursue concise and efficient code, so it also adheres to this concept in language design. For example, the excellent garbage collection mechanism and built-in concurrency support can help reduce the packaged size of the program.

In addition, it is worth mentioning that Golang has also improved the overall management efficiency of packages to a certain extent by continuously upgrading and improving its package management tool go mod. For example, go mod can help developers perform version control and dependency management, and avoid problems such as multi-version dependent libraries and version inconsistencies.

Although Golang packaging is relatively small, in actual development, developers still need to pay attention to the following points:

1. Developers need to carefully select and use dependent libraries. When using third-party dependent libraries, you should try to choose the libraries you need to rely on instead of introducing too many libraries at once.
2. Developers need to avoid code redundancy in the code and need to consider code optimization. This can effectively reduce the size of the program and improve the running efficiency of the program.
3. Developers need to pay attention to the selection and setting of compilation parameters when packaging, which may have a greater impact on the packaged program size.

Finally, to summarize: Golang packaging size is relatively small, mainly due to static linking and the characteristics of the language itself. However, in order to avoid the problem of oversized packages, developers need to carefully choose dependent libraries and handle redundant code. At the same time, they can choose appropriate compilation parameters to adjust the program size according to the actual situation.

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