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A comment on When static makes your C code 10 times faster.

Re:When static makes your C code 10 times faster by sdfdf4434r34r on Sunday July 04, 2021 @02:56PM (#27731799)
As an embedded programmer working on small micros I make every single function static (including third party code, which I modify and bring into the source tree and curate myself), gives you global/link time optimizations and dead code elimination for free, leads to better code even at -O0, -Og and -O1, static const configuration structs/values gets optimized away, and so on.

Really wish it was the default.

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Re:When static makes your C code 10 times faster by kevin_thibedeau on Sunday July 04, 2021 @04:05PM (#27732219)
It also gives you a nice private namespace for the translation unit so you can confidently modify any of the static objects without concern for impacting external code.

I once had a gray beard chew me out over changing a function signature when revising things. I had to point out politely that it was static and that anyone who managed to link to the function had to be breaking a lot of rules to do so.

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