## Performance
Just a simple comparison with the Rust echo server implemented with [tokio][tokio] to get sense about May.
**Note:**
> The [Tokio-based][tokio] version is 0.2.18(2020-04-19). In theory, `future` scheduling is not evolving context switch which should be a little bit faster than the coroutine version. But I can't find a proper example for multi-threaded version comparison, so just put it here for you to get some sense about the performance of May. If you have a better implementation of s futures-based echo server, I will update it here. You can refer to https://tfb-status.techempower.com/ to get the latest [may_minihttp][may_minihttp] comparisons with other most popular frameworks.
**The machine's specification:**
* **Logical Cores:** 8 (4 cores x 2 threads)
* **Memory:** 4gb ECC DDR3 @ 1600mhz
* **Processor:** CPU Intel(R) Core(TM) i7-3820QM CPU @ 2.70GHz
* **Operating System:** Windows WSL2 Ubuntu 18.04
**An echo server and client:**
You can just compile it under this project:
```sh
$ cargo build --example=echo_client --release
```
**Tokio-based echo server:**
Run the server by default with 8 threads in another terminal:
```sh
$ cd tokio
$ cargo run --example=echo --release
```
```sh
$ cargo run --example=echo_client --release -- -c 100 -l 100 -t 8 -a 127.0.0.1:8080
Finished release [optimized] target(s) in 5.86s
Running `target/release/examples/echo_client -c 100 -l 100 -t 8 -a '127.0.0.1:8080'`
==================Benchmarking: 127.0.0.1:8080==================
100 clients, running 100 bytes, 10 sec.
Speed: 153496 request/sec, 153495 response/sec, 14989 kb/sec
Requests: 1534961
Responses: 1534958
```
**May-based echo server:**
Run the server by default with 2 threads in another terminal:
```sh
$ cd may
$ cargo run --example=echo --release -- -t 8 -p 8000
```
```sh
$ cargo run --example=echo_client --release -- -c 100 -l 100 -t 8 -a 127.0.0.1:8000
Finished release [optimized] target(s) in 11.77s
Running `target/release/examples/echo_client -c 100 -l 100 -t 8 -a '127.0.0.1:8000'`
==================Benchmarking: 127.0.0.1:8000==================
100 clients, running 100 bytes, 10 sec.
Speed: 256155 request/sec, 256155 response/sec, 25015 kb/sec
Requests: 2561559
Responses: 2561554
```
-----------
<!-- refs -->
[tokio]:https://github.com/tokio-rs/tokio/blob/master/examples/echo.rs
[may_minihttp]:https://github.com/Xudong-Huang/may_minihttp