On Thu, Jan 10, 2013 at 8:37 AM, Maciej Stachowiak <m...@apple.com> wrote: > > The reason I ask is that this sounds like a significant increase in > complexity, so we should be very confident that there is a real and major > benefit. One thing I wonder about is how common it is to have enough of the > page processed that the user could interact with it in principle, yet still > have large parsing chunks remaining which would prevent that interaction > from being smooth. Another thing I wonder about is whether yielding to the > event loop more aggressively could achieve a similar benefit at a much > lower complexity cost. >
I don't want to let this point of Maciej's slip away: on mobile we may have fewer cores than desktop, and we're paying a pretty high complexity burden for multiple threads already; some of Nat's awesome recent work in Chromium is too multithreaded for my comfort. I'd back-of-enveloped yielding during page layout and guessed it wasn't worthwhile, but do we know that yielding during parsing isn't? Tom
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