key1 := strings.Repeat("X", 1<<20)
	key2 := strings.Repeat("X", 1<<20) // equal but different instance
	m[key1] = true
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		_, _ = m[key2]
	}
}

func BenchmarkMegEmptyMap(b *testing.B) {
	m := make(map[string]bool)
	key := strings.Repeat("X", 1<<20)
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		_, _ = m[key]
	}
}