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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.
Released and actually adopted by developers, and then seeing a benefit in games. I'd love to see it patched into existing games but I'm not counting on seeing it in a big way for PC soon. I don't think it's been mentioned in the notes for upcoming versions of windows or the DX blog after the announcement, although it wouldn't be at all surprising if they've got private channels to some developers
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