Continuous slow script warning

[jdm]

https://www.usenix.org/system/files/1403_02-08_mickens.pdf

After flipping through a couple pages, pdf.js started triggering slow script warnings continuously until I pressed "stop script".

[timvandermeij]

I can't reproduce that issue, although there is a bit of a scrolling jank. Marking as performance issue for now.

[yurydelendik]

#4286 w/webgl will address that:

• https://www.usenix.org/system/files/1403_02-08_mickens.pdf#webgl=false&pdfBug=Stats&page=7 rendering 8667ms
• https://www.usenix.org/system/files/1403_02-08_mickens.pdf#webgl=true&pdfBug=Stats&page=7 rendering 3208ms

[timvandermeij]

This renders in an instant now and the scrollink jank has also been resolved thanks to the latest performance patches. Closing as fixed.