template<class T>
void Foo2(T&& a) {
    string b = std::forward<T>(a);
};

template<class T>
void Foo3(T&& a) {
    string b = a;
};

const int tryes = 1'000'000;
for (int i = 0; i < 5; i++) {
    {
        muTimer T1;
        T1.start();
        for (int i = 0; i < tryes; i++) {
            Foo3(std::move("Habrahabr"));
        }
        cout << T1.stop().duration() << endl;;
    }
    {
        muTimer T1;
        T1.start();
        for (int i = 0; i < tryes; i++) {
            Foo2(std::move("Habrahabr"));
        }
        cout << T1.stop().duration() << endl;;
    }
    {
        muTimer T1;
        T1.start();
        for (int i = 0; i < tryes; i++) {
            Foo3(std::move("Habrahabr"));
        }
        cout << T1.stop().duration() << endl;;
    }
    {
        muTimer T1;
        T1.start();
        for (int i = 0; i < tryes; i++) {
            Foo2(std::move("Habrahabr"));
        }
        cout << T1.stop().duration() << endl;;
    }
}

call    ??$forward@AEAV?$basic_string@DU?$char_trait...........

??$forward@AEAV?$basic_string@DU..... PROC
    mov QWORD PTR [rsp+8], rcx
    mov rax, QWORD PTR _Arg$[rsp]
    ret 0