Anshul Sharma sharmaansh21

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

Meet Chef

My notes from the Meet Chef course at http://pluralsight.com/training/Courses/TableOfContents/meet-chef

Introduction

Chef is a Ruby framework for automating, reusing and documenting server configuration. It's like Unit tests for your servers.

	# Install rvm system-wide
	bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

	# Update the packages
	apt-get update
	apt-get upgrade
	apt-get install build-essential

	# get the packages required by ruby
	rvm pkg install zlib

	# app / controllers / application_controller.rb
	class ApplicationController < ActionController::Base
	# Prevent CSRF attacks by raising an exception.
	# For APIs, you may want to use :null_session instead.
	protect_from_forgery with: :exception
	before_filter :configure_permitted_parameters, if: :devise_controller?

	protected

	def configure_permitted_parameters

	# Install rvm system-wide
	bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

	# Update the packages
	apt-get update
	apt-get upgrade
	apt-get install build-essential

	# get the packages required by ruby
	rvm pkg install zlib

	#---------------------------------------------------------------------
	#
	# Parse the response from Sonatype Nexus in order to determine the
	# correct URI for the most recent snapshot of an artifact.
	#
	# Usage:
	# ruby get_latest_snapshot.rb \
	# -n http://localhost:8080/nexus \
	# -g uk.co.scattercode \
	# -a my-artifact \

	#!/usr/bin/env ruby
	#/ Usage: <progname> [options]...
	#/ How does this script make my life easier?
	# ** Tip: use #/ lines to define the --help usage message.
	$stderr.sync = true
	require 'optparse'

	# default options
	flag = false
	option = "default value"

	include $(GOROOT)/src/Make.inc

	GOFMT=gofmt -spaces=true -tabindent=false -tabwidth=4

	all:
	$(GC) jsontest.go
	$(LD) -o jsontest.out jsontest.$O

	format:
	$(GOFMT) -w jsontest.go

	#XLarge DBInstanceClassMemory = 15892177440 = 14.8GB
	#/32 = 496630545 = 473MB
	#/64 = 248315272 = 236MB
	#/128 = 124157636 = 118MB
	#/256 = 62078818 = 59MB
	#/512 = 31039409 = 29MB
	#/12582880 = 1263 #default same divisor as max_connections = 4041.6MB = 4237924762
	#/25165760 = 623 # half of max_connections = 1993.6MB
	#/50331520 = 315 # quarter of max_connections = 1008MB = 1056964608
	#*(3/4) #default innodb pool size = 11922309120

	source :rubygems

	# We are not loading Active Record, nor Active Resources etc.
	# We can do this in any app by simply replacing the rails gem
	# by the parts we want to use.
	gem "actionpack", "~> 4.0"
	gem "railties", "~> 4.0"
	gem "tzinfo"

	# Let's use thin