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Neat visualization, 100 megabytes of ram consumption! Sometimes as much as 8 meg GC during a JavaScript frame, making the frame bloat to over 50ms of running time.

I bet there are some cheap wins you can find in there OP! Keep up the good work.

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You should've seen it before we found all the cheap wins :) Seriously though, I'd be interested to hear any ideas you have - it has already been optimized quite a bit but it's just a lot of data (3 million rows over 50 years). It uses canvas and throws away all the circle references every day so that helps a lot.

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