main.ts

const loop = 100000000;

Deno.bench("hoge", () => {
  function f(n: number): number {
    function g(): number {
      return n;
    }

    return g();
  }

  for (let i = 0; i < loop; i++) {
    f(1);
  }
});

Deno.bench("fuga", () => {
  function g(n: number): number {
    return n;
  }

  function f(n: number): number {
    return g(n);
  }

  for (let i = 0; i < loop; i++) {
    f(1);
  }
});

shell-output.txt

cpu: AMD Ryzen 5 5600X 6-Core Processor
runtime: deno 1.29.2 (x86_64-unknown-linux-gnu)

file:///home/okayurisotto/tmp/main.ts
benchmark      time (avg)             (min … max)       p75       p99      p995
------------------------------------------------- -----------------------------
hoge        22.04 ms/iter   (21.64 ms … 24.32 ms)  22.08 ms  24.32 ms  24.32 ms
fuga         22.1 ms/iter   (21.69 ms … 23.46 ms)  22.23 ms  23.46 ms  23.46 ms