A quick glance at D3's source code confirms what I suspected: all it does is call setAttributeNS on the DOM. So the re-rendering isn't really its concern, but the browser's.
As for performance, I believe the focus is on the user's performance, not the computer's.
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A quick glance at D3's source code confirms what I suspected: all it does is call setAttributeNS on the DOM. So the re-rendering isn't really its concern, but the browser's.
As for performance, I believe the focus is on the user's performance, not the computer's.