A simple throughput benchmark is included. Run with
`cargo bench --bench throughput`
To get a flamegraph for the the benchmark, install `flamegraph` with `cargo install flamegraph`, and the
```bash
cargo bench --bench throughput
flamegraph ./target/release/deps/throughput-f85af157940f16e6 --bench throughput --profile-time 10
firefox flamegraph.svg
```