Can WebRender support incremental display list updates?

[shangguan1024]

Currently, WebRender traverses full display lists of a page in the scene builder thread, even when only a portion of the display lists have changed. This results in suboptimal performance for the scene builder thread. A similar issue was raised five years ago (#4046 ). Are there any better feasible solutions available now?

[nical]

Unfortunately no. It's pretty high in the list of issues but it is a very large undertaking and we haven't managed to dedicate the necessary resources to do it.

[shangguan1024]

Unfortunately no. It's pretty high in the list of issues but it is a very large undertaking and we haven't managed to dedicate the necessary resources to do it.

Can I ask why does Servo build the property tree in WebRender after receiving the full display list, rather than completing the property tree creation during the display list creation? What was the original reason for this design?

[mrobinson]

Property tree support was simply never implemented for Servo, AFAIK.