Dash Plotly High GPU Memory usage


I am using plotly+dash to plot 128 traces in one graph with 128 subplots, of 10000 points each (the signal has already been downsampled). I use Scattergl for rendering performance.

What I do not understand is that very often the tab crashes. I looked at the used resources, and I can see that GPU memory usage (Chrome, Windows 11) reaches 7 GB. What would be responsible for this high memory use please? Indeed, 1280000 points is only a few hundred MB on disk, not GB. Would you have any idea of a fix or a workaround please? If it is not possible with Plotly, what other library could I use?

I thank you in advance for your help,

Best regards,


Hi! Any idea please?