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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.
Dominion is still in its early stages but has already started running at a very high speed, fast by design. It's still far from a complete ECS solution, but I've already implemented the API to create/delete Entities with Components, find them and iterate. I've also posted some benchmarks related only to what I've achieved so far (so on the speed of creating, deleting, and iterating Entities), and I think it looks very promising.
I've tinkered with Artemis-odb in a libgdx project, but its honestly starting to feel bloated. I've also tried Ashley, but Artemis seems to be the gold standard for java ECS. It could use a good contender to shake things up.
The readme on Artemis's github lists some benchmarks, and though these aren't direct comparisons and only napkin math, your project seems competitive with the abandoned Retinazer which consistently outperforms it! This early in development that certainly seems like a good sign!