performance / multi threading

[kanekv]

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It seems by default it runs on single thread, is there any way to use multiple threads? I've tried to run it with:

let env = Arc::new(EnvBuilder::new().build());

And it still consumes only 1 core.

This doesn't work as well, still only 1 core is busy:

let env = Arc::new(Environment::new(8));

I'm creating just 1 grpc connection from the client. I expect server still should be able to use multiple cores. Creating multiple connections also doesn't help, performance is still a lot worse than go's grpc server.

I'm sending 1M hello requests: go: 22 seconds. grpcio: 38 seconds.

[siddontang]

Hi @Kane-Sendgrid

One connection can only use one Core, no matter how many you set on the server.

Can you give us the benchmark test?

[kanekv]

@siddontang I'll send it to you. But, interestingly, go server does utilize > 1 core even with 1 connection. But in any case I wasn't able to get any improvements with 1 thread vs 8 threads and 1 connection vs 100 connections. It was almost the same in all cases.