It occurs to me, maybe mistakenly, that there is a tendency to believe that being precise with your type arguments in functions also gives you performant code. Performance Tips doesn’t explicitly mention something like that. I myself also cannot find reasons to agree with such a statement. In my vi…

[image] filchristou: And as long as the compilation is done, run-time execution will be the same for both cases. right? Correct - type declarations in arguments are (almost all of the time) only used for informing dispatch. The only exception I know of is when julia avoids specialization on p…

Performance of abstract argument in methods

General Usage Performance

stevengj July 21, 2021, 9:50pm 3

This is discussed in more detail by the Julia 1.7 manual: https://github.com/JuliaLang/julia/blob/master/doc/src/manual/functions.md#argument-type-declarations

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Performance of abstract argument in methods

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