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> but I just want to randomly point out that 3 years of hourly data is really not as much, as it may sound to somebody.

you're right, it isn't. and yet many js charting libs struggle even with this.

on my i5 thinkpad with integrated gpu uPlot can render 600 series x 8,000 datapoints in ~2000ms [1]. and it finishes this job in ~7s on my 2015 sony z5 compact phone. so there's that :)

but really, pumping 4.8M datapoints into a browser is probably not a great idea. you're gonna want to aggregate on the server at some point. just sayin'.

[1] https://leeoniya.github.io/uPlot/bench/uPlot-600-series.html




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