Open
Description
Version
hyper 0.14.23
h2 0.3.15
tokio 1.22.0
Platform
Linux polonium 6.0.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 16 Nov 2022 17:01:17 +0000 x86_64 GNU/Linux
Description
Given the following code:
use hyper::{Client, Server, Body, Response, Request};
use hyper::service::{make_service_fn, service_fn};
use std::env::args;
#[tokio::main]
async fn main() {
let mut args = args();
args.next();
let http2_only = args.next() == Some("http2".into());
tokio::spawn(async {
let make_svc = make_service_fn(move |_| {
async move {
Ok::<_, hyper::Error>(service_fn(move |_req| {
async move {
Ok::<_, hyper::Error>(Response::new(Body::from(vec![])))
}
}))
}
});
let addr = ([127, 0, 0, 1], 3000).into();
Server::bind(&addr).serve(make_svc).await
});
tokio::spawn(async move {
let client = Client::builder()
.http2_only(http2_only)
.build_http();
for _ in 0..100_000 {
let request = Request::builder().method("POST").uri("http://127.0.0.1:3000/foo").body(Body::from(vec![1, 2, 3])).unwrap();
let _res = client.request(request).await.unwrap();
}
}).await.unwrap();
}I'm getting the following:
[eijebong@polonium] ~/code/hyper-slow (main) >>> time ./target/release/hyper-slow
./target/release/hyper-slow 0.93s user 2.55s system 99% cpu 3.477 total
[eijebong@polonium] ~/code/hyper-slow (main) >>> time ./target/release/hyper-slow http2
./target/release/hyper-slow http2 6.34s user 5.61s system 18% cpu 1:04.53 total
As you can see, if the client is set to do HTTP/2 only, the whole thing is around 20 times slower.
Now, if I remove the tokio::spawn around the client async block, I get ./target/release/hyper-slow http2 3.90s user 4.77s system 111% cpu 7.804 total which is still twice as slow as the HTTP/1 implementation.