1280243 - Lag with mouseover using MetricsGraphics.js with "large" data sets

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect, P3)

Description

[u279076]

Attachment: profile.json

1. Load http://ashughes1.github.io/metrics-graphics-gfx/#webgl-percent
2. Mouse over data points and note the lag
3. Do the same in Chrome and note the lag appears to be less

Note that the graph above renders 8700 datapoints, smaller charts on this site use less than 1000 datapoints and don't exhibit this issue. 

Screencast: https://youtu.be/-fwYvS1SWw8

Attached is a profile I captured using the built-in profiler in the regular Nightly build. When I mouseover the framerate takes a dive which seems to correlate to ~40ms paints following the mouseover.

I can provide more details upon request.

Comment 1

[Wayne Mery (:wsmwk)]

For me on 89 beta on Mac seems just as fast chrome