> It is the best possible feedback for me.
See the little role play I offered in my other answer.
It's not always the best possible feedback for you.
First, because you might think the feedback is not justified. Your manager will tell you that other person is better than you according to some metric and you are very likely to disagree. And then what? Anguish, stress on your end. Resentment of your manager, your peers, your job. You'll start losing sleep over this and you'll probably quit because you feel you're not being appreciated.
But assuming the feedback is warranted and you are mature enough to take it as a positive criticism that you're going to work on. You will then probably expect to get that raise that evens out your salary with that other person, but what if you never do? Again anguish, resentment, etc...
There's really hardly any chance anything positive comes out of this kind of transparency.
See the little role play I offered in my other answer.
It's not always the best possible feedback for you.
First, because you might think the feedback is not justified. Your manager will tell you that other person is better than you according to some metric and you are very likely to disagree. And then what? Anguish, stress on your end. Resentment of your manager, your peers, your job. You'll start losing sleep over this and you'll probably quit because you feel you're not being appreciated.
But assuming the feedback is warranted and you are mature enough to take it as a positive criticism that you're going to work on. You will then probably expect to get that raise that evens out your salary with that other person, but what if you never do? Again anguish, resentment, etc...
There's really hardly any chance anything positive comes out of this kind of transparency.