comparing scala native perf and golang

main.go

// run `go build main.go`
package main

import (
	"fmt"
	"os"
	"strconv"
)

func fibonacci(n int) int {
	if n <= 1 {
		return n
	}
	prev, current := 0, 1
	for i := 2; i <= n; i++ {
		prev, current = current, prev+current
	}
	return current
}

func main() {
	if len(os.Args) < 2 {
		fmt.Println("Usage: go run main.go <number>")
		return
	}

	arg := os.Args[1]
	n, err := strconv.Atoi(arg)
	if err != nil {
		fmt.Printf("Error: '%s' is not a valid integer.\n", arg)
		return
	}

	fmt.Printf("Fibonacci(%d) = %d\n", n, fibonacci(n))
}

main.scala

// run `scala package main.scala --native -o main`
import scala.annotation.tailrec

def fibonacci(n: Int): Long =
  @tailrec
  def loop(n: Int, prev: Long, current: Long): Long =
    if n == 0 then prev
    else if n == 1 then current
    else loop(n - 1, current, prev + current)

  loop(n, 0, 1)

@main def run(args: String*): Unit =
  if args.isEmpty then
    println("Usage: run <number>")
  else
    try
      val n = args(0).toInt
      println(s"Fibonacci($n) = ${fibonacci(n)}")
    catch
      case _: NumberFormatException =>
        println(s"Error: '${args(0)}' is not a valid integer.")

results.txt

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/scala (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   13.21 millis    fish           external
   usr time    2.88 millis    0.09 millis    2.79 millis
   sys time    7.66 millis    2.37 millis    5.29 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/scala (⎈ colima|default)
╰─λ time ./main 1000                                                                                                                                                                                                           
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   13.10 millis    fish           external
   usr time    2.41 millis    0.13 millis    2.28 millis
   sys time    6.67 millis    2.43 millis    4.24 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/scala (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   13.21 millis    fish           external
   usr time    3.48 millis    0.12 millis    3.36 millis
   sys time    7.64 millis    2.69 millis    4.95 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/scala (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in    9.39 millis    fish           external
   usr time    1.95 millis    0.09 millis    1.86 millis
   sys time    5.93 millis    2.17 millis    3.76 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/go (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   18.27 millis    fish           external
   usr time    2.44 millis    0.11 millis    2.33 millis
   sys time    8.55 millis    2.40 millis    6.15 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/go (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   12.62 millis    fish           external
   usr time    3.29 millis    0.09 millis    3.20 millis
   sys time    7.84 millis    2.09 millis    5.76 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/go (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   12.43 millis    fish           external
   usr time    3.52 millis    0.10 millis    3.43 millis
   sys time    7.93 millis    2.23 millis    5.70 millis

╭─lbialy at vl-d-1325 in ⌁/Projects/foss/tmp/compare-perf-go-scala/go (⎈ colima|default)
╰─λ time ./main 1000
Fibonacci(1000) = 817770325994397771

________________________________________________________
Executed in   16.87 millis    fish           external
   usr time    3.10 millis    0.09 millis    3.01 millis
   sys time    7.27 millis    1.91 millis    5.36 millis