I remember seeing the cause of this specific case mentioned in a slide deck by one of the V8 engineers. I don't remember where online it is. I was to validate this performance limitation more than a year ago through self-testing in my personal code.
As titzer mentioned this issue may no longer exist. I would have to run additional tests to independently make an assessment with the current V8.
As titzer mentioned this issue may no longer exist. I would have to run additional tests to independently make an assessment with the current V8.