SeongHo's Project 831jsh

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.

Live backup of KVM virtual machines

This script will let you make backups of live VMs running on KVM, using libvirt.

The backup job will suspend the VM for the time it takes to copy the RAM to disk.

Credits: Luca Lazzeroni

I've made some minor adjustments.

	#!/bin/bash

	echo -e "\nbenchmark.sh -n<number of requests> -c<number of concurrency> <URL1> <URL2> ..."

	echo -e "\nEx: benchmark.sh -n100 -c10 http://www.google.com/ http://www.bing.com/ \n"

	## Gnuplot settings
	echo "set terminal png
	set output 'benchmark_${1}_${2}.png'
	set title 'Benchmark: ${1} ${2}'

	#!/bin/bash
	#
	# Watch current directory (recursively) for file changes, and execute
	# a command when a file or directory is created, modified or deleted.
	#
	# Written by: Senko Rasic <[email protected]>
	#
	# Requires Linux, bash and inotifywait (from inotify-tools package).
	#
	# To avoid executing the command multiple times when a sequence of

	# 0 is too far from ` ;)
	set -g base-index 1

	# Automatically set window title
	set-window-option -g automatic-rename on
	set-option -g set-titles on

	#set -g default-terminal screen-256color
	set -g status-keys vi
	set -g history-limit 10000

	# Configuration file for runtime kernel parameters.
	# See sysctl.conf(5) for more information.

	# See also http://www.nateware.com/linux-network-tuning-for-2013.html for
	# an explanation about some of these parameters, and instructions for
	# a few other tweaks outside this file.
	#
	# See also: https://gist.github.com/kgriffs/4027835
	#
	# Assumes a beefy machine with lots of network bandwidth

	<?php
	/*
	OCP - Opcache Control Panel (aka Zend Optimizer+ Control Panel for PHP)
	Author: _ck_ (with contributions by GK, stasilok)
	Version: 0.1.7
	Free for any kind of use or modification, I am not responsible for anything, please share your improvements

	* revision history
	0.1.7 2015-09-01 regex fix for PHP7 phpinfo
	0.1.6 2013-04-12 moved meta to footer so graphs can be higher and reduce clutter

	# OS: Debian 7, Apache 2.2.22, OpenSSL 1.0.1e
	# SSL Labs: A+ (RSA2048, SHA256 certificate)
	# Certificate: 100%
	# Protocol Support: 95%
	# Key Exchange: 90%
	# Cipher Strength: 90%

	# Disable SSL protocol, only TLS.
	SSLProtocol all -SSLv2 -SSLv3
	SSLHonorCipherOrder on

	#!/bin/bash
	#

	BACKUPDEST="$1"
	DOMAIN="$2"
	MAXBACKUPS="$3"

	if [ -z "$BACKUPDEST" -o -z "$DOMAIN" ]; then
	echo "Usage: ./vm-backup <backup-folder> <domain> [max-backups]"
	exit 1