speed

What a load of *. This post was under engineered.

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how much you talk

What do you mean by this?

I guess my anwnser is: Developer performance is messured badly.

To messure it well you need someone with good taste (which is had to find developers often dislike other peoples code for no good reason).

From your 3 options its only on code you ship thats cared about. But its quality and volume.

None techie managers dont understand how good a developer actually is. But they try with the info they have. From whats said.