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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 you only need the visual feedback without the interactive feature, you might also like https://github.com/TeMPOraL/nyan-mode which is the thing I'm using to save horizontal screen estate.
NOTE:
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Hence, a higher number means a more popular project.