Re: requestAnimationFrame rate for background tabs and offscreen instances

Thanks, Seth. Please file a bug for us to capture the details of a plan
here.

--Jet

On Mon, Aug 31, 2015 at 11:21 AM, Seth Fowler <[email protected]> wrote:

> We do eventually throttle rAF to zero for background tabs, IIRC (there’s
> an exponential decay phase first). IIRC, we mainly didn’t do it for
> offscreen iframes in foreground tabs because of concerns that there could
> be interaction between different iframes, so throttling an offscreen iframe
> totally off could also end up disabling a visible iframe. Till might
> remember more specifics.
>
> I’d like to go to zero as well if we think we can get away with it. If
> Blink is *committed* to doing it too, then we probably can.
>
> - Seth
>
> > On Aug 31, 2015, at 11:08 AM, Jet Villegas <[email protected]>
> wrote:
> >
> > I met with some Chromium engineers over dinner last week and talked
> about how Blink throttles rAF on background tabs to zero FPS, and that
> they're also working on setting off-screen iframes to zero FPS. I believe
> we currently throttle to 1 FPS for off-screen and background tabs.
> >
> > Should we go to zero as well?
> >
> > --Jet
>
>
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