I was testing client-server connection with gRPC client written in C# and a bunch of servers (written in c++, C#, rust and go). As I was testing it locally everything went okay (average GO response around 0.12ms) but when I test it over local network it gets really slow, like REALLY slow. Average time goes to 40ms per request! To be clear: I am using a simple HelloWorld proto with simplest connection possible. Other servers get about 1ms per request but Go - around 40ms.
My Go server code:
package main
import (
"context"
pb "descriptions"
"log"
"net"
"google.golang.org/grpc"
)
type server struct{}
// SayHello implements helloworld.GreeterServer
func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
//log.Printf("Received: %v", in.Name)
return &pb.HelloReply{Message: ""}, nil
}
func main() {
// lis, err := net.Listen("tcp", port)
lis, err := net.Listen("tcp", "0.0.0.0:50051")
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
log.Printf("Server listening on: " + lis.Addr().String())
pb.RegisterGreeterServer(s, &server{})
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
I do not suspect that it is client side issiue because it works well with other servers. Have anyone had the same issiue with golang? Please let me know! I was also thinking if that might be like HTTP 1.1 issue but gRPC supports HTTP2 so I suspect it is already used when running this code.
