Command to bench networking

[AndreiEres]

Working on networking in Substrate and Polkadot, it would be very helpful to run benchmarks for a PR. Since we don't need to do this for every run, it could be executed via a bot command.

Here are the commands to run the benchmarks:

cargo bench -p sc-network --bench notifications_protocol -- --output-format bencher
cargo bench -p sc-network --bench request_response_protocol -- --output-format bencher

The output displays the time for 100 messages, but our public charts use values for a single message. It would be helpful if the command output could show the numbers divided by 100.

@paritytech/networking

[mordamax]

@AndreiEres transferred to polkadot-sdk, as command-bot is deprecated by now. New command bot is part of polkadot-sdk, and it's open for contributions https://github.com/paritytech/polkadot-sdk/blob/master/.github/scripts/cmd/cmd.py