long run

[Soojin Yoon]

Hi!

I'm trying to set a live chart .

even there's only one timer, chart becomes slow after less than 10 min.

And it takes more memory as time goes by.

What should I do?

Thank you

[Sriram Kiran Senthilkumar]

Hi Soojin Yoon, 

 

Greetings from Syncfusion. Greetings from Syncfusion. We have analyzed your scenario at our end, and we would like to let you know that if you want the render chart with large amount of data points, then you can use FastLineSeries for better performance if you are using LineSeries at your end. Also, to mention that, in your case, if you need to render tens of thousands of data on demand, then you can use our loadMoreIndicatorBuilder feature available in the chart widget with which you can be able render the chart data points on demand to get smooth performance. We have also attached our loadMoreIndicatorBuidler SB sample along with sample code link and user guide below for your reference.  

SB link: https://flutter.syncfusion.com/#/cartesian-charts/on-demand-loading/infinite-scrolling 

GitHub link: https://github.com/syncfusion/flutterexamples/blob/master/lib/samples/chart/cartesian_charts/on_demand_loading/infinite_scrolling.dart 

User Guide: https://help.syncfusion.com/flutter/cartesian-charts/on-demand-loading 

  

Also, we would like to let you know that if you want to stream tens of thousands of live data in the chart smoothly, then you can use the UpdateDataSource public method to update live data to the chart from the data source. Please check the SB sample links for further reference.  

SB link: https://flutter.syncfusion.com/#/cartesian-charts/real-time-charts/live-updates/real-time-line-chart 

 

However, we are continuously working on improving and optimizing the performance of our chart widget at our end and will roll them out in of our upcoming main releases.    

  

Regards,  

Sriram Kiran