Oleksiy Chechel night-codes

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

Go HTTP standalone (as the control group)
Nginx proxy to Go HTTP
Nginx fastcgi to Go TCP FastCGI
Nginx fastcgi to Go Unix Socket FastCGI

Introduction

Given that you can assign a variable of any type to an interface{}, often people will try code like the following.

var dataSlice []int = foo()
var interfaceSlice []interface{} = dataSlice

This gets the error

cannot use dataSlice (type []int) as type []interface { } in assignment

1) Создаем юзера под которым будет работать приложение, задаем пароль и переключаемся на него:

useradd -s /bin/bash <имя_пользователя>
passwd <имя_пользователя>
su <имя_пользователя>

2) Генерируем новый ключ для деплоя

ssh-keygen -t rsa -C "<имя_пользователя>@<домен_сервиса>"

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

	#! /bin/sh
	#chkconfig: 345 20 80
	#description: node.js server service

	PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/srv/msrv.su/node/ # modify if you need

	DESC="node.js server service"
	NAME="node_service"
	DAEMON="node"

	package main

	import (
	"fmt"
	"labix.org/v2/mgo"
	"labix.org/v2/mgo/bson"
	"time"
	)

	type Person struct {

	package main

	import (
	"fmt"
	"reflect"
	)

	func makeInsert(fptr interface{}) {
	fn := reflect.ValueOf(fptr).Elem()
	fn.Set(reflect.MakeFunc(fn.Type(), func(in []reflect.Value) []reflect.Value {

	package main

	import (

	"log"
	"net/mail"
	"encoding/base64"
	"net/smtp"
	"fmt"
	"strings"

	System: Host: mint Kernel: 4.8.0-53-generic x86_64 (64 bit gcc: 5.4.0)
	Desktop: Cinnamon 3.4.3 (Gtk 3.18.9-1ubuntu3.3) dm: lightdm Distro: Linux Mint 18.2 Sonya
	Machine: System: Apple product: MacPro6 1 v: 1.0 Chassis: type: 2 v: Mac-F60DEB81FF30ACF6
	Mobo: Apple model: Mac-F60DEB81FF30ACF6 v: MacPro6 1
	Bios: Apple v: MP61.88Z.0116.B46.1706200309 date: 06/20/2017
	CPU: Multi core Intel Xeon E5-2695 v2 (-HT-MCP-) cache: 30720 KB
	flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 57594
	clock speeds: min/max: 1200/3200 MHz 1: 1626 MHz 2: 1440 MHz 3: 1650 MHz 4: 1304 MHz
	5: 1335 MHz 6: 1559 MHz 7: 1264 MHz 8: 1402 MHz 9: 1498 MHz 10: 1319 MHz 11: 1547 MHz
	12: 1495 MHz 13: 1269 MHz 14: 2102 MHz 15: 1409 MHz 16: 1669 MHz 17: 1732 MHz 18: 1672 MHz