Categories: News

Scaling real-time visualisations

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Our CNN-IBN Microsoft Election Analytics Center, which you can see the live visualisations, has served over 7 million requests in the last 8 hours..

This includes real-time filtering of the election commission results – based on turnouts, margins, computations of anti-incumbency factors, alliance groupings, etc.

The data resides in an SQL Server hosted on a Windows Server at CNN-IBN’s office at Noida. This data is fed real-time into the Gramener visualisation server, running on an Azure virtual machine at Singapore.

This is one of the largest real-time visualisations that we (and perhaps many others) have attempted. Yet all of these computations were handled by a single 4-core 7GB RAM server running 4 instances of the Gramener visualisation server. (For comparison, this blog post is written on an 8-core 8GB RAM laptop.)

This system saw a peak load of 450 requests per second and average load of 260 requests per second. For comparison, Wikipedia serves about 100-200 requests per second on each server. Twitter serves 600 requests per second.

A big thank you to all of you who visited our site. We’re happy and proud.

Gramener - A Straive Company

Gramener – A Straive company is a design-led data science firm. We build custom Data & Al solutions that help solve complex business problems with actionable insights and compelling data stories.

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