How big is the golang stack space?

Golang is a modern programming language. Its original design and unique advantages make it a popular language. In golang, memory management is a very important topic, especially stack space.

Stack space is a data structure used to allocate memory when a program is executed. Its size is related to the number and type of variables in the program. In golang, the size of the stack space is automatically calculated and set by the compiler, so its size cannot be obtained directly. However, we can indirectly understand the stack space used by golang in the following ways:

1. When using goland IDE to debug a program, you can see the goroutine overhead information in the debug information, including stack usage. Amount, total stack size, etc.
2. You can get the size of the goroutine stack by using the functions in golang's runtime package, such as runtime.Stack(), runtime.GOMAXPROCS(), etc.
3. Use golang's built-in tools to view goroutine's stack information, such as: pprof, expvar, etc.

In general, the default size of golang's stack space is 2MB. Although it looks small, golang's coroutine mechanism greatly reduces the space occupied by the program on the stack. Therefore, in fact, This value is large enough to meet most needs. However, if your program needs to use larger stack space, you can modify the stack space size yourself through the functions in the runtime package, but this is at your own risk.

In golang, memory management is a very important topic, and the size of the stack space is also very important, because it will directly affect the performance and stability of the program. If you are using golang to develop a program, please keep in mind that the default stack space size of golang is 2MB, and understand some methods of modifying the stack space size, which is very important for you to write high-performance golang programs.

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