gistfile1.txt

package sssss

import "testing"

type A struct {
	List []interface{}
}

func (a *A) Add(in interface{}) {
	a.List = append(a.List, in)
}

type B[T any] struct {
	List []T
}

func (b *B[T]) Add(in T) {
	b.List = append(b.List, in)
}


func BenchmarkDemo(b *testing.B) {
	const size = 1000

	b.Run("Interface", func(b *testing.B) {
		b.ReportAllocs()

		for i := 0; i < b.N; i++ {
			var obj A

			for j:=0; j< size; j++ {
				obj.Add(i)
			}
		}
	})

	b.Run("Generics", func(b *testing.B) {
		b.ReportAllocs()

		for i := 0; i < b.N; i++ {
			var obj B[int]

			for j:=0; j< size; j++ {
				obj.Add(i)
			}
		}
	})
}