Full Code of costajob/app-servers for AI

Repository: costajob/app-servers
Branch: master
Commit: 38eebf5e632b
Files: 15
Total size: 10.3 KB

Directory structure:
gitextract_vcycwxna/

├── .gitignore
├── .ruby-version
├── README.md
└── servers/
    ├── .gitignore
    ├── crystal_server.cr
    ├── dart_server.dart
    ├── httpbeast_server.nim
    ├── node_server.js
    ├── plug_server/
    │   ├── .gitignore
    │   ├── lib/
    │   │   ├── app.ex
    │   │   └── server.ex
    │   └── mix.exs
    ├── rack_server.ru
    ├── servemux_server.go
    └── wsgi_server.py

================================================
FILE CONTENTS
================================================

================================================
FILE: .gitignore
================================================
# Vagrant
.vagrant

# Elixir
/_build
/cover
/deps
erl_crash.dump
/servers/**/Gemfile.lock
*.ez
*.class
*.beam

# Python
/servers/__pycache__
/servers/*.pyc
/servers/.wsgi

# Crystal
*.dwarf

# Executable
crystal_server
fasthttp_server
httpbeast_server
*.aot*


================================================
FILE: .ruby-version
================================================
3.0.0


================================================
FILE: README.md
================================================
# Table of Contents

* [Scope](#scope)
  * [Hello World](#hello-world)
  * [Disclaimer](#disclaimer)
* [Languages](#languages)
  * [Ruby](#ruby)
  * [Python](#python)
  * [JavaScript](#javascript)
  * [Dart](#dart)
  * [Elixir](#elixir)
  * [Crystal](#crystal)
  * [Nim](#nim)
  * [GO](#go)
* [Tools](#tools)
  * [Wrk](#wrk)
  * [Platform](#platform)
  * [RAM and CPU](#ram-and-cpu)
* [Benchmarks](#benchmarks)
  * [Results](#results)
  * [Puma](#puma)
  * [Gunicorn with Meinheld](#gunicorn-with-meinheld)
  * [Node Cluster](#node-cluster)
  * [Dart HttpServer](#dart-httpserver)
  * [Plug with Cowboy](#plug-with-cowboy)
  * [Crystal HTTP](#crystal-http)
  * [httpbeast](#httpbeast)
  * [GO ServeMux](#go-servermux)
  * [Hyper](#hyper)

## Scope
The idea behind this repository is to benchmark different languages implementation of HTTP server.

### Hello World
The *application* i tested is minimal: the HTTP version of the *Hello World* example.  
This approach allows including languages i barely know, since it is pretty easy to find such implementation online.  
If you're looking for more complex examples, you will have better luck with the [TechEmpower benchmarks](https://www.techempower.com/benchmarks/).

### Disclaimer
Please do take the following numbers with a grain of salt: it is not my intention to promote one language over another basing on micro-benchmarks.  
Indeed you should never pick a language just basing on its presumed performance.

## Languages
I have became lazy with years and just adopt languages i can install via `homebrew`, sorry Oracle/MS. This also allows me to benchmark them in a single session, thus trying to use an environment as neutral as possible.
Where possible i just relied on the standard library, but when it is not production-ready (i.e. Ruby, Python).

### Ruby
[Ruby](https://www.ruby-lang.org/en/) 3.0.0 is used. 
Ruby is a general-purpose, interpreted, dynamic programming language, focused on simplicity and productivity. 

### Python
[Python](https://www.python.org/) 3.9.1 is used.
Python is a widely used high-level, general-purpose, interpreted, dynamic programming language.  

### JavaScript
[Node.js](https://nodejs.org/en/) version 15.5.0 is used.
Node.js is based on the V8 JavaScript engine, optimized by Google and supporting most of the new language's features.   

### Dart
[Dart](https://www.dartlang.org/) version 2.10.4 is used.
Dart is a VM based, object-oriented, sound typed language using a C-style syntax that transcompiles optionally into JavaScript.

### Elixir
[Elixir](http://elixir-lang.org/) 1.11.2 is used.
Elixir is a purely functional language that runs on the [Erlang](https://www.erlang.org/) VM and is strongly influenced by the Ruby syntax.

### Crystal
[Crystal](http://crystal-lang.org/) 0.35.1 is used.
Crystal has a syntax very close to Ruby, but brings some desirable features such as statically typing and ahead of time (AOT) compilation.  

### Nim
[Nim](http://nim-lang.org/) 1.4.2 is used.
Nim is an AOT, Python inspired, statically typed language that comes with an ambitious compiler aimed to produce code in C, C++, JavaScript or ObjectiveC.

### GO
[GO](https://golang.org/) 1.15.6 is used.
GO is an AOT language that focuses on simplicity and offers a broad standard library with [CSP](https://en.wikipedia.org/wiki/Communicating_sequential_processes) constructs built in.

## Tools

### Wrk
I used [wrk](https://github.com/wg/wrk) as the loading tool.  
I measured each application server six times, picking the best lap (but for VM based languages demanding longer warm-up).  
```shell
wrk -t 4 -c 100 -d30s --timeout 2000 http://0.0.0.0:9292
```

### Platform
These benchmarks are recorded on a MacBook PRO 13 2019 having these specs:
* macOS Catalina
* 1.4 GHz Quad-Core Intel Core i5
* 8 GB 2133 MHz LPDDR3

### RAM and CPU
I measured RAM and CPU consumption by using macOS Activity Monitor dashboard and recording max consumption peak.  
For the languages relying on pre-forking parallelism i reported the average consumption by taking a snapshot during the stress period.

## Benchmarks

### Results
| Language                  | App Server                                        | Requests/sec      | RAM (MB)  | CPU (%)  |
| :------------------------ | :------------------------------------------------ | ----------------: |---------: |--------: |
| [Ruby+MJIT](#ruby)        | [Puma](#puma)                                     |         36455.88  |    > 100  |   > 580  |
| [Elixir](#elixir)         | [Plug with Cowboy](#plug-with-cowboy)             |         46416.25  |     50.5  |   583.8  |
| [Ruby](#ruby)             | [Puma](#puma)                                     |         47975.36  |    > 100  |   > 580  |
| [Dart](#dart)             | [Dart HttpServer](#dart-httpserver)               |         59335.33  |    193.2  |   429.1  |
| [JavaScript](#javascript) | [Node Cluster](#node-cluster)                     |         87208.47  |    > 200  |   > 240  |
| [GO](#go)                 | [GO ServeMux](#go-servemux)                       |        103847.10  |     10.0  |   429.1  |
| [Python](#python)         | [Gunicorn with Meinheld](#gunicorn-with-meinheld) |        120105.65  |     > 40  |   > 380  |
| [Nim](#nim)               | [httpbeast](#httpbeast)                           |        128257.98  |     11.4  |    99.6  |
| [Crystal](#crystal)       | [Crystal HTTP](#crystal-http)                     |        132699.78  |      8.5  |   246.7  |

                                                                                                   
### Puma
I tested Ruby by using a plain [Rack](http://rack.github.io/) application served by [Puma](http://puma.io).  

#### Bootstrap
```shell
RUBYOPT='--jit' puma -w 8 -t 2 --preload servers/rack_server.ru
```


### Gunicorn with Meinheld
I tested Python by using [Gunicorn](http://gunicorn.org/) spawning [Meinheld](http://meinheld.org/) workers with a plain WSGI compliant server.

#### Bootstrap
```shell
cd servers
gunicorn -w 4 -k meinheld.gmeinheld.MeinheldWorker -b :9292 wsgi_server:app
```


### Node Cluster
I used the cluster module included into Node's standard library.

#### Bootstrap
```shell
node servers/node_server.js
```


### Dart HttpServer
I used the async HTTP server embedded into the Dart standard library and compiled it with `dart2native` AOT compiler.

#### Bootstrap
```shell
dart2native servers/dart_server.dart -k aot
dartaotruntime servers/dart_server.aot
```


### Plug with Cowboy
I tested Elixir by using [Plug](https://github.com/elixir-lang/plug) library that provides a [Cowboy](https://github.com/ninenines/cowboy) adapter.

#### Bootstrap
```shell
cd servers/plug_server
MIX_ENV=prod mix compile
MIX_ENV=prod mix run --no-halt
```


### Crystal HTTP
I used Crystal HTTP server standard library, enabling parallelism by using the `preview_mt` flag.  

#### Bootstrap
```shell
crystal build -Dpreview_mt --release servers/crystal_server.cr
./crystal_server
```


### httpbeast
To test Nim i opted for the [httpbeast](https://github.com/dom96/httpbeast) library: an asynchronous server relying on Nim HTTP standard library.

#### Bootstrap
```shell
nim c -d:release --threads:on servers/httpbeast_server.nim
./servers/httpbeast_server
```


### GO ServeMux
I used the [HTTP ServeMux](https://golang.org/pkg/net/http/) GO standard library.

#### Bootstrap
```shell
go run servers/servemux_server.go
```


================================================
FILE: servers/.gitignore
================================================
__pycache__
nimcache
go_server
crystal_server
nim_server
pony_server


================================================
FILE: servers/crystal_server.cr
================================================
require "http/server"

server = HTTP::Server.new do |context|
  context.response.content_type = "text/plain"
  context.response.print "Hello World"
end

server.listen(9292)


================================================
FILE: servers/dart_server.dart
================================================
import 'dart:async';
import 'dart:io';
import 'dart:isolate';

const String _HOST = '0.0.0.0';
const String _GREET = 'Hello World';

_startServer(arg) async {
  var server = await HttpServer.bind(_HOST, 9292, shared: true);
  await for (HttpRequest request in server) {
    request.response
      ..write(_GREET)
      ..close();
  }
}

void main() {
  final cpus = Platform.numberOfProcessors;
  for (int i = 0; i < cpus; i++)
    Isolate.spawn(_startServer, null);
  _startServer(null);
}


================================================
FILE: servers/httpbeast_server.nim
================================================
import asyncdispatch, httpbeast, options

const settings = httpbeast.initSettings(Port(9292))

proc onRequest(req: Request): Future[void] =
  if req.httpMethod == some(HttpGet):
      const data = "Hello World"
      const headers = "Content-Type: text/plain"
      req.send(Http200, data, headers)

run(onRequest, settings)


================================================
FILE: servers/node_server.js
================================================
const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  for (let i = 0; i < numCPUs; i++) {
    cluster.fork();
  }
} else {
  http.createServer((req, res) => {
    res.writeHead(200);
    res.end('Hello World');
  }).listen(9292);
}


================================================
FILE: servers/plug_server/.gitignore
================================================
/_build
/cover
/deps
erl_crash.dump
*.ez
./*.beam
mix.lock


================================================
FILE: servers/plug_server/lib/app.ex
================================================
defmodule App do
  use Application

  def start(_type, _args) do
    children = [
      Plug.Cowboy.child_spec(scheme: :http, plug: Server, options: [port: 9292])
    ]

    opts = [strategy: :one_for_one, name: App.Supervisor]
    Supervisor.start_link(children, opts)
  end
end


================================================
FILE: servers/plug_server/lib/server.ex
================================================
defmodule Server do
  import Plug.Conn

  def init(opts), do: opts

  def call(conn, _opts) do
    conn
    |> put_resp_content_type("text/plain")
    |> send_resp(200, "Hello world")
  end
end


================================================
FILE: servers/plug_server/mix.exs
================================================
defmodule PlugServer.Mixfile do
  use Mix.Project

  def project do
    [app: :server,
     version: "1.2.0",
     elixir: "~> 1.8",
     start_permanent: Mix.env == :prod,
     deps: deps()]
  end

  def application do
    [applications: [:cowboy, :plug],
     mod: {App, []},
     env: [cowboy_port: 9292]]
  end

  defp deps do
   [{:cowboy, "~> 2.6.3"},
    {:plug, "~> 1.8"},
    {:plug_cowboy, "~> 2.0.2"}]
  end
end


================================================
FILE: servers/rack_server.ru
================================================
run Proc.new { |env| ['200', {'Content-Type' => 'text/plain'}, ['Hello World']] }


================================================
FILE: servers/servemux_server.go
================================================
package main	

 import (	
	"fmt"	
	"log"	
	"net/http"	
)	

 func main() {	
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {	
		fmt.Fprint(w, "Hello World")	
	})	
	log.Fatal(http.ListenAndServe("0.0.0.0:9292", nil))	
}


================================================
FILE: servers/wsgi_server.py
================================================
BODY = b'Hello World'
LEN = str(len(BODY))


def app(_, resp):
    body = BODY
    resp('200 OK', [('Content-Type', 'text/plain'), ('Content-Length', LEN)])
    yield body