research/pointer-params/

[utterances-bot]

Pointers Might Not be Ideal as Arguments

https://golang.design/research/pointer-params/

[changkun]

@Yanwenjiepy 感谢指出，应该是个笔误，已修正。

[xorcare]

Hello, I found your article and began to conduct my research, at the moment I think that there is a connection not with the size of the structure, but with the number of fields that it has:

Modified generator source code: Gist

[changkun]

Hello, I found your article and began to conduct my research, at the moment I think that there is a connection not with the size of the structure, but with the number of fields that it has.

@xorcare Thanks for a follow-up to this article. The article was written at Go 1.16 and back then there was no register-based calling convention, and inline optimization was also not as good as 1.17. If you run the experiment on 1.17, the conclusion might be different.

Still, I think the conclusion of the article would need some sort of update. Thanks again for bringing this up to discussion 👍

[xorcare]

JFYI. Environment information:

• cpu: Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz
• go version go1.17.6 darwin/amd64

[changkun]

@xorcare Then it makes some sense. If switch to go 1.16, you may reproduce the article's conclusion.

[5idu]

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