> if you make performance markedly worse on the regression test, then that's a bug. Not at all, it's about not investing time on what doesn't matter. For sure

> if you make performance markedly worse on the regression test, then that's a bug. Not at all, it's about not investing time on what doesn't matter. For sure it will means you spend less time on something else and that will slowly get worse. That's why feature get deprecated and removed. Supporting something not used has a cost. I'll repeat my last paragraph: > If your usage is closer to synthetic benchmark and thus you lost close to that 30% of performance since Chrome 75, then take your real world scenario and send that to the V8 teams, I'm sure they'll be happy to consider it in the test suite. If you do need that speed, show them.