Performance degradation for scalar pane caused by forced reflows in Plottable.js

If I have a few dozen runs visible in the Scalars pane and one or more plots are maximized, Chromium (Version 58.0.3029.110 Built on Ubuntu , running on Ubuntu 14.04 (64-bit)) slows to a crawl within a few minutes after a refresh; developer tools points to plottable.js:14262 (which finds some kind of bounding box, perhaps related to the legend tooltip) as causing a “forced reflow.” Since that executes 20x per frame and can take up to 250ms, I’m consistently seeing a frame rate of ~0.2fps. If I replace

try {
    bbox = element.node().getBBox();
}
catch (err) {
    bbox = {
        x: 0,
        y: 0,
        width: 0,
        height: 0
    };
}
return bbox;

with

return {x: 0, y:0, width:0, height:0};

the only difference I can perceive is that everything is faster (but presumably there’s something broken behind the scenes).

[jekbradbury]

I’ll rebuild the docker image I’m using (didn’t realize https://hub.docker.com/r/alband/crayon/ hadn’t been pushed in 5 months) and I imagine that’ll at least make things better. I can’t get over how incredibly responsive you all are…thanks so much for your help!

[wchargin]

Great—thanks for confirming! No apology necessary; please come again. 😃