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Support for rendering million data points #561

gullyy opened this issue Feb 27, 2017 · 2 comments


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@gullyy gullyy commented Feb 27, 2017

Considering I update the data every 1 sec and 10 data points get updated every second,the chart might have million data points rendered by the end of the day...

What is the performance for such a scenario?Has anyone had similar experiences?
Also I see that every time the data gets updated the graph.series.addData(data); graph.render(); needs to be called. What happens with the render function? Does it render the whole data model again and again? Or it is react -like,render only the change set?


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@daiyanze daiyanze commented Apr 7, 2017

How much data do you have at hands? Usually I think d3 is not able to handle that much data on a single page. I used to use DC.js for massive data visualization but it came out with a very frustrating performance. So my conclusion is that it is always better to shrink the size of your raw data and then visualize them. You may take a look at the following links.

  1. Does D3.js work efficiently on massive amounts of data (200 million rows with at least a dozen columns)?
  2. D3: How to show large dataset

It is better to use canvas based library if scripting and rendering time is somehow one of your concerns.


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@leeoniya leeoniya commented Oct 14, 2019

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