Why does the demo site simulation fire 1 new event every 1000 ms ?

[morlandi]

I was asked this question at the Pycon Italy 2019 conference.
For demonstration purposes, 1 Hz is good enough, however the demo code "as is" could dispatch signals at a much higher rate.
The real limitation comes from the chart in the user interface, and mainly affects the browser (that is, client side).
To keep the project simple, I'm currently using:

• ChartJs for charting: https://github.com/chartjs/Chart.js
• chartjs-plugin-streaming plugin for real time update: https://github.com/nagix/chartjs-plugin-streaming/
• chartjs-plugin-zoom plugin for zooming and panning: https://github.com/chartjs/chartjs-plugin-zoom

It's not a particular performing solution.

It is my intention to test these alternatives:

• NVD3, Re-usable charts for d3.js: http://nvd3.org/
• dygraphs, a fast, flexible open source JavaScript charting library: http://dygraphs.com/

I will update the issue with my progress on this (hopefully).
Any comment, suggestion or contribution is welcome