210 lines
6.4 KiB
Markdown
210 lines
6.4 KiB
Markdown
# Benchmarks
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A simple benchmark of Simple-Web-Server and a few similar web libraries.
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Details:
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* Linux distribution: Debian Testing (2019-07-29)
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* Linux kernel: 4.19.0-1-amd64
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* CPU: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
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* CPU cores: 4
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* The HTTP load generator [httperf](https://github.com/httperf/httperf) is used
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to create the benchmark results, with the following arguments:
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```sh
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httperf --server=localhost --port=3000 --uri=/ --num-conns=20000 --num-calls=200
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```
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The response messages were made identical.
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## Express
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[Express](https://expressjs.com/) is a popular Node.js web framework.
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Versions:
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* Node: v10.15.2
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* Express: 4.17.1
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Code:
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```js
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const express = require('express');
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const app = express();
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app.get('/', (req, res) => {
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res.removeHeader('X-Powered-By');
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res.removeHeader('Connection');
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res.end('Hello World!')
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});
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const port = 3000;
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app.listen(port, () => console.log(`Example app listening on port ${port}!`));
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```
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Execution:
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```sh
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NODE_ENV=production node index.js
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```
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Example results (13659.7 req/s):
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```sh
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httperf --client=0/1 --server=localhost --port=3000 --uri=/ --send-buffer=4096 --recv-buffer=16384 --num-conns=20000 --num-calls=200
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httperf: warning: open file limit > FD_SETSIZE; limiting max. # of open files to FD_SETSIZE
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Maximum connect burst length: 1
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Total: connections 20000 requests 40000 replies 20000 test-duration 2.928 s
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Connection rate: 6829.9 conn/s (0.1 ms/conn, <=1 concurrent connections)
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Connection time [ms]: min 0.1 avg 0.1 max 14.8 median 0.5 stddev 0.1
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Connection time [ms]: connect 0.0
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Connection length [replies/conn]: 1.000
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Request rate: 13659.7 req/s (0.1 ms/req)
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Request size [B]: 62.0
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Reply rate [replies/s]: min 0.0 avg 0.0 max 0.0 stddev 0.0 (0 samples)
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Reply time [ms]: response 0.1 transfer 0.0
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Reply size [B]: header 76.0 content 12.0 footer 0.0 (total 88.0)
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Reply status: 1xx=0 2xx=20000 3xx=0 4xx=0 5xx=0
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CPU time [s]: user 0.66 system 2.27 (user 22.4% system 77.5% total 99.9%)
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Net I/O: 1414.0 KB/s (11.6*10^6 bps)
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Errors: total 20000 client-timo 0 socket-timo 0 connrefused 0 connreset 20000
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Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
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```
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## Hyper
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[Hyper](https://hyper.rs/) is a Rust HTTP library that topped the
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[TechEmpower Web Framework Benchmarks results](https://www.techempower.com/benchmarks/#section=data-r18&hw=ph&test=plaintext) in 2019-07-09.
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Versions:
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* rustc: 1.38.0-nightly
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* hyper: 0.12
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Code (copied from
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https://github.com/hyperium/hyper/blob/0.12.x/examples/hello.rs, but removed `pretty_env_logger`
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calls due to compilation issues):
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```rust
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#![deny(warnings)]
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extern crate hyper;
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// extern crate pretty_env_logger;
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use hyper::{Body, Request, Response, Server};
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use hyper::service::service_fn_ok;
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use hyper::rt::{self, Future};
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fn main() {
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// pretty_env_logger::init();
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let addr = ([127, 0, 0, 1], 3000).into();
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let server = Server::bind(&addr)
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.serve(|| {
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// This is the `Service` that will handle the connection.
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// `service_fn_ok` is a helper to convert a function that
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// returns a Response into a `Service`.
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service_fn_ok(move |_: Request<Body>| {
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Response::new(Body::from("Hello World!"))
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})
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})
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.map_err(|e| eprintln!("server error: {}", e));
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println!("Listening on http://{}", addr);
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rt::run(server);
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}
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```
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Compilation and run:
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```sh
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cargo run --release
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```
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Example results (60712.3 req/s):
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```sh
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httperf --client=0/1 --server=localhost --port=3000 --uri=/ --send-buffer=4096 --recv-buffer=16384 --num-conns=20000 --num-calls=200
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httperf: warning: open file limit > FD_SETSIZE; limiting max. # of open files to FD_SETSIZE
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Maximum connect burst length: 1
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Total: connections 20000 requests 4000000 replies 4000000 test-duration 65.884 s
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Connection rate: 303.6 conn/s (3.3 ms/conn, <=1 concurrent connections)
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Connection time [ms]: min 3.0 avg 3.3 max 11.3 median 3.5 stddev 0.3
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Connection time [ms]: connect 0.0
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Connection length [replies/conn]: 200.000
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Request rate: 60712.3 req/s (0.0 ms/req)
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Request size [B]: 62.0
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Reply rate [replies/s]: min 58704.0 avg 60732.7 max 62587.7 stddev 1021.7 (13 samples)
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Reply time [ms]: response 0.0 transfer 0.0
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Reply size [B]: header 76.0 content 12.0 footer 0.0 (total 88.0)
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Reply status: 1xx=0 2xx=4000000 3xx=0 4xx=0 5xx=0
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CPU time [s]: user 15.91 system 49.97 (user 24.1% system 75.8% total 100.0%)
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Net I/O: 8893.4 KB/s (72.9*10^6 bps)
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Errors: total 0 client-timo 0 socket-timo 0 connrefused 0 connreset 0
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Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
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```
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## Simple-Web-Server
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In these simplistic tests, the performance of Simple-Web-Server is similar to
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the Hyper Rust HTTP library, although Hyper seems to be slightly faster more
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often than not.
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Versions:
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* g++: 9.1.0
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Code (modified `http_examples.cpp`):
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```c++
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#include "server_http.hpp"
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using HttpServer = SimpleWeb::Server<SimpleWeb::HTTP>;
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int main() {
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HttpServer server;
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server.config.port = 3000;
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server.default_resource["GET"] = [](std::shared_ptr<HttpServer::Response> response, std::shared_ptr<HttpServer::Request> /*request*/) {
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response->write("Hello World!", {{"Date", SimpleWeb::Date::to_string(std::chrono::system_clock::now())}});
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};
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server.start();
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}
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```
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Build, compilation and run:
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```sh
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mkdir build && cd build
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CXX=g++-9 CXXFLAGS="-O2 -DNDEBUG -flto" cmake ..
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make
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./http_examples
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```
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Example results (60596.3 req/s):
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```sh
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httperf --client=0/1 --server=localhost --port=3000 --uri=/ --send-buffer=4096 --recv-buffer=16384 --num-conns=20000 --num-calls=200
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httperf: warning: open file limit > FD_SETSIZE; limiting max. # of open files to FD_SETSIZE
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Maximum connect burst length: 1
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Total: connections 20000 requests 4000000 replies 4000000 test-duration 66.011 s
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Connection rate: 303.0 conn/s (3.3 ms/conn, <=1 concurrent connections)
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Connection time [ms]: min 3.2 avg 3.3 max 8.0 median 3.5 stddev 0.0
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Connection time [ms]: connect 0.0
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Connection length [replies/conn]: 200.000
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Request rate: 60596.3 req/s (0.0 ms/req)
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Request size [B]: 62.0
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Reply rate [replies/s]: min 60399.6 avg 60596.9 max 60803.8 stddev 130.9 (13 samples)
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Reply time [ms]: response 0.0 transfer 0.0
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Reply size [B]: header 76.0 content 12.0 footer 0.0 (total 88.0)
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Reply status: 1xx=0 2xx=4000000 3xx=0 4xx=0 5xx=0
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CPU time [s]: user 16.07 system 49.93 (user 24.3% system 75.6% total 100.0%)
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Net I/O: 8876.4 KB/s (72.7*10^6 bps)
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Errors: total 0 client-timo 0 socket-timo 0 connrefused 0 connreset 0
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Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
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```
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