Are you reusing the ManagedChannel for making all the RPC's or recreating it for each RPC? Reusing the channel is the way to go since the connections don't need to be reestablished.
On Thursday, October 16, 2025 at 6:40:21 PM UTC+5:30 Mansoor Shaik wrote: > Hello gRPC Team, > > > I hope you are doing well. > > I am currently working on evaluating gRPC Java performance as part of a > sample setup, and I wanted to share an issue I’m facing that seems > performance-related. > > > > I have implemented a minimal gRPC server and client setup using Java + > Maven, following the official example provided on the gRPC Java > documentation site( https://grpc.io/docs/languages/java/quickstart/) The > build and execution both complete successfully — however, the observed > performance is much lower than expected. > > > > When I run the server and client locally on the same machine, I notice > that in one second, the client can only perform around 200–500 gRPC > synchronous calls using synchronous stubs. I expected much higher > throughput, given that gRPC is designed to provide significant performance > benefits compared to RMI-based APIs. > > > > As a comparison, when I tested a Java RMI-based setup under similar > conditions, benchmark results it achieved 7,684 calls per second > > > > I’ve ensured that the implementation strictly follows the example code, > including .proto generation and Maven dependency configuration. > > Below are the technical details and the steps I’ve already verified: > > > > Environment Details > > - Language: Java > - Build Tool: Maven > - Framework: gRPC Java (sample from official documentation) > - Java Version: 24 > - Operating System: Windows 11 > - Hardware: 8 GB RAM, Intel i5 Processor > > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/grpc-io/69117a53-bc3a-443e-8720-54cdc5cf9ac1n%40googlegroups.com.
