【Rust日报】2019-09-02 - Rocket和Actix-Web的异步性能测试

Rocket和Actix-Web的异步性能测试

Rust目前最火的两个web框架就是Actix-Web和Rocket， 众所周知，Rocket的优势在于易用性，Actix-web在于性能，最近，Rocket的人员正在迁移到异步后端。因此，作者想看看异步分支和主分支如何的性能如何同时和Actix-Web进行比较是很有趣的。

测试使用的项目

用Rocket编写的hello world应用程序

#![feature(proc_macro_hygiene, decl_macro)]

#[macro_use] extern crate rocket;

#[get("/")]
fn index() -> String {
"Hello, world!".to_string()
}

fn main() {
rocket::ignite().mount("/", routes![index]).launch();
}

Cargo.toml的差异（同步和异步）

[dependencies]
rocket = { git = "https://github.com/SergioBenitez/Rocket.git", branch = "async" }

同步

[dependencies]
rocket = { git = "https://github.com/SergioBenitez/Rocket.git", branch = "master" }

下面的程序用于测试Actix-Web

use actix_web::{web, App, HttpServer, Responder};

fn index() -> impl Responder {
"Hello, World".to_string()
}

fn main() -> std::io::Result<()> {
HttpServer::new(|| App::new().service(web::resource("/").to(index)))
.bind("127.0.0.1:8000")?
.run()
}

我还引入了Wrap

use warp::{self, path, Filter};

fn main() {
let hello = path!("hello")
.map(|| "Hello, world!");

warp::serve(hello)
.run(([127, 0, 0, 1], 8000));
}

结果

我运行了二个应用程序使用了 ​​cargo run --release​​​ 并用了​​wrk -t20 -c1000 -d30s http://localhost:8000​​

Rocket 同步

Running 30s test @ http://localhost:8000
20 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 7.14ms 61.41ms 1.66s 97.97%
Req/Sec 5.15k 1.45k 14.87k 74.03%
3076813 requests in 30.10s, 428.40MB read
Requests/sec: 102230.30
Transfer/sec: 14.23MB

Rocket 异步

Running 30s test @ http://localhost:8000
20 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 4.34ms 3.06ms 211.14ms 79.00%
Req/Sec 11.15k 1.81k 34.11k 79.08%
6669116 requests in 30.10s, 0.91GB read
Requests/sec: 221568.27
Transfer/sec: 31.06MB

Actix-Web

Running 30s test @ http://localhost:8000
20 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 3.82ms 5.58ms 249.57ms 86.55%
Req/Sec 24.09k 5.27k 69.99k 72.52%
14385279 requests in 30.10s, 1.71GB read
Requests/sec: 477955.05
Transfer/sec: 58.34MB

Warp

20 threads and 1000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 4.23ms 8.50ms 428.96ms 93.33%
Req/Sec 20.38k 6.09k 76.63k 74.57%
12156483 requests in 30.10s, 1.47GB read
Requests/sec: 403896.10
Transfer/sec: 50.07MB

结论

虽然async Rocket的性能仍然不如Actix-Web，但是async极大地提高了它的性能。

我非常希望看到Rocket的性能提高到这样的程度：作为一名开发人员，从此就不需要在易用性和性能之间做出选择。

rustversion - 根据rustc编译器版本进行条件编译

这个类库提供了宏的扩展，能够根据rustc编译器版本进行条件编译的宏。

使用案例

#[rustversion::since(1.33)]
use std::pin::Pin;

#[rustversion::since(1.33)]
impl<P: MyTrait> MyTrait for Pin<P> {
/* ... */
}


#[rustversion::attr(before(1.33), repr(packed))]
#[rustversion::attr(since(1.33), repr(packed(2)))]
struct Six(i16, i32);

fn main() {
println!("{}", std::mem::align_of::<Six>());
}

更多信息可以前往GitHub了解一哈

mobi-rs - 用于解析和操作.mobi格式的Rust库

一个用rust编写的从.mobi格式电子书中提取数据的库

使用案例

访问基本信息

use mobi::Mobi;
fn main() {
let m = Mobi::init(Path::new("/home/wojtek/Downloads/lotr.mobi")).unwrap();
let title = m.title().unwrap();
let author = m.author().unwrap();
let publisher = m.publisher().unwrap();
let desc = m.description().unwrap();
let isbn = m.isbn().unwrap();
let pub_date = m.publish_date().unwrap();
let contributor = m.contributor().unwrap();
println!("{}\n{}\n{}\n{}\n{}\n{}\n{}\n", title, author, publisher, isbn, pub_date, desc, contributor);
// Access Headers
let header = m.header; // Normal Header
let pdheader = m.palmdoc; // PalmDOC Header
let mheader = m.mobi; // MOBI Header
let exth = m.exth // Extra Header
}

输出

The Fellowship of the Ring
J. R. R. Tolkien
Houghton Mifflin
9780618574940
2005-07-15T07:00:00+00:00
SUMMARY: For over fifty years, J.R.R.............
calibre (0.7.23) [http://calibre-ebook.com]

更多信息可以前往GitHub了解一哈

persy - 用Rust编写的简单事务性存储引擎

Persy是一个用rust编写的事务性存储引擎。

示例

use persy::{Persy,Config};
//...
Persy::create("./open.persy")?;
let persy = Persy::open("./open.persy",Config::new())?;
let mut tx = persy.begin()?;
persy.create_segment(&mut tx, "seg")?;
let data = vec![1;20];
persy.insert_record(&mut tx, "seg", &data)?;
let prepared = persy.prepare_commit(tx)?;
persy.commit(prepared)?;
for (_id, content) in persy.scan("seg")? {
assert_eq!(content[0], 20);
//....
}

更多信息可以前往GitLab了解一哈

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