-
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.
Another interesting link is their official grpc-java benchmarks project, which is also used in the benchmark I've posted you.
Tried to make a benchmark using gatling-grpc and a plain project that just receives a request and returns hello world. I couldn't however get it anywhere close to your requirements, unfortunately.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.