On Sat, Jan 28, 2017 at 7:36 PM, Emilio Cobos Álvarez
> > - Servo is using a setup that includes many runtimes (roughly one per
> > group, other terminology notwithstanding) to achieve goals similar to
> > Quantum DOM. I can't find it right now, but I think we even have a demo
> > showing smooth animation in one frame while another frame is suffering
> > GC jank.
> I believe this is the URL you were looking for (though I think the ad
> should be cross-origin, which is not true in that demo page):
In this demo the jank is caused by a long-running script in the banner ad.
I thought I had seen one about GC jank, but I'm probably misremembering.