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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
If I understand your question correctly, this is very similar to what I'm doing in my xlivebg project (live wallpapers for X11): http://nuclear.mutantstargoat.com/sw/xlivebg/ I did a talk about how it works in last year's fossdem, which you might find useful: https://www.youtube.com/watch?v=jrD7vlYmITc
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