Go is quite memory efficient, and escape analysis is what keeps it efficient.
Go uses a compiler optimization called escape analysis which helps optimize memory usage. The key idea of this optimization technique is to analyze the code and understand if an object escapes the current scope.
If the object escapes the current scope, allocate them on the heap, otherwise go for the stack. Given that stack-allocated objects are automatically cleaned up when the function returns, it prevents memory leaks and minimizes the work required by the GC.
To understand this and more, read the comment mentioned in the attached file. Also, you can use -gcflags "-m" while running go build and it would print all the optimization decisions.
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