Lucas Santos da Costa lsantosc

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	"0111301";"Cultivo de arroz"
	"0111302";"Cultivo de milho"
	"0111303";"Cultivo de trigo"
	"0111399";"Cultivo de outros cereais não especificados anteriormente"
	"0112101";"Cultivo de algodão herbáceo"
	"0112102";"Cultivo de juta"
	"0112199";"Cultivo de outras fibras de lavoura temporária não especificadas anteriormente"
	"0113000";"Cultivo de cana-de-açúcar"
	"0114800";"Cultivo de fumo"
	"0115600";"Cultivo de soja"

	#!/bin/bash

	print_gems() {
	awk '/([[:alnum:]_]+) \(/{ print $1 }' Gemfile.lock \| sort -u
	}

	count() {
	grep -c ^
	}