Xiaoli Wang xiaoli

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.

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality.

ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

Other options for PDFSETTINGS:

/screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
/ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
/printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
/prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

A Backbone.js demo app (Sinatra Backend)

Oct 16 2010

Updates

04/10/2011 - Updated application.js and application.rb thanks to @rebo's comments

In this article, I will walk through some simple steps to get a [demo app][2] up and running with [Backbone.js][3] and [Sinatra][4] on [Heroku][5].

	// Update the appropriate href query string parameter
	function paramReplace(name, string, value) {
	// Find the param with regex
	// Grab the first character in the returned string (should be ? or &)
	// Replace our href string with our new value, passing on the name and delimeter
	var re = new RegExp("[\\?&]" + name + "=([^&#]*)"),
	delimeter = re.exec(string)[0].charAt(0),
	newString = string.replace(re, delimeter + name + "=" + value);

	return newString;

	function weixinAddContact(name){
	WeixinJSBridge.invoke("addContact", {webtype: "1",username: name}, function(e) {
	WeixinJSBridge.log(e.err_msg);
	//e.err_msg:add_contact:added 已经添加
	//e.err_msg:add_contact:cancel 取消添加
	//e.err_msg:add_contact:ok 添加成功
	if(e.err_msg == 'add_contact:added' \|\| e.err_msg == 'add_contact:ok'){
	//关注成功，或者已经关注过
	}
	})

	#include <Wire.h>
	#include <SPI.h>
	//define our colors for LED Array
	#define GREEN 0x01
	#define RED 0x02
	#define ORANGE 0x03
	//define the SPI pins for the LED Array
	#define SLAVESELECT 10//ss
	char ledArray [64];
	byte pixelTempL;

	Backbone.serverSync = Backbone.sync;
	Backbone.pingUrl = '/Ping';

	Backbone.localID = function() {
	var localID = (localStorage.localID ? parseInt(localStorage.localID) : 0);
	localID++;
	localStorage.localID = localID.toString()
	return -localID;
	}

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

	server {
	listen 80;
	server_name <domain>
	server_name_in_redirect off;

	access_log logs/<domain>.access.log;
	error_log logs/<domain>.error.log;

	gzip_static on;