marcelduran’s gists

marcelduran / gist:889721

Created March 27, 2011 22:42

YUI3 sandboxing

	(function (d){
	var iframe = d.body.appendChild(d.createElement('iframe')),
	doc = iframe.contentWindow.document;

	iframe.style.cssText = 'position:absolute; top:-999em';

	doc.open();
	doc.write('
	<body onload="
	YUI_config={win:window.parent,doc:window.parent.document};

marcelduran / cpuusage.js

Last active December 18, 2015 05:38

Getting CPU(s) usage % with NodeJS,based on: https://github.com/oscmejia/os-utils/blob/master/lib/osutils.js

	var os = require('os');

	const RESOLUTION = 1000; // 1s CPU resolution

	function cpusInfo() {
	return os.cpus().map(function(cpu) {
	var t = cpu.times;

	return {
	total: t.user + t.nice + t.sys + t.irq + t.idle,

marcelduran / kbps.sql

Last active December 18, 2015 19:19

I always wondered what could be a good "page speed" metric. Since most pages have a few kbytes of payload and take a few seconds to load kbps (kilobytes per second) could be a good metric. The following httparchive bigquery shows the "page speed" in kbps quantiles as well as min, max, avg and count for both desktop and mobile pages.Check it out h…

	SELECT client + ' (' + STRING(volume) + ')' AS client, mean, q_10th, q_25th, median, q_75th, q_90th, q_95th, q_99th
	FROM
	(SELECT
	'desktop' AS client,
	COUNT(0) AS volume,
	AVG((bytesTotal / 1024) / (fullyLoaded / 1000)) as mean,
	NTH(101, QUANTILES((bytesTotal / 1024) / (fullyLoaded / 1000), 1001)) AS q_10th,
	NTH(251, QUANTILES((bytesTotal / 1024) / (fullyLoaded / 1000), 1001)) AS q_25th,
	NTH(501, QUANTILES((bytesTotal / 1024) / (fullyLoaded / 1000), 1001)) AS median,
	NTH(751, QUANTILES((bytesTotal / 1024) / (fullyLoaded / 1000), 1001)) AS q_75th,

marcelduran / httparchi_twitter.sql

Created July 16, 2013 00:04

Select all data from HTTPArchive dumps for twitter.com only

	SELECT * FROM
	(SELECT * FROM [httparchive:runs.2010_11_15_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2010_11_29_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2010_12_16_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2010_12_28_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2011_01_20_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2011_01_31_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2011_02_11_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2011_02_26_pages] WHERE url = "http://www.twitter.com/"),
	(SELECT * FROM [httparchive:runs.2011_03_15_pages] WHERE url = "http://www.twitter.com/"),

marcelduran / TTFT breakdown

Last active December 20, 2015 06:19

	<!doctype html>
	<html>
	<head>
	<script>console.log('pre css', performance.now());</script>
	<link rel="stylesheet" href="http://1.cuzillion.com/bin/resource.cgi?type=css&sleep=2&n=1&t=12345" onload="console.log('css load', performance.now())">
	<script>console.log('post css', performance.now());</script>
	</head>
	<body>
	<h1>foo</h1>
	<script>console.log('dom', performance.now());</script>

marcelduran / flickr_archive_downloader_browser.js

Last active December 28, 2016 02:18

Flickr archive bulk downloader

	var PAD = '00000';

	var count = {
	all: 0,
	day: 0,
	single: 0
	};

	var timer, isFirst, imgs, current;

marcelduran / gist:1e91b64849e4c0572de2

Created May 14, 2014 18:09

PhantomJS script to pseudo-retina screenshots

	var page = require('webpage').create(),
	address, output, size;

	page.onConsoleMessage = function(msg, lineNum, sourceId) {
	console.log('CONSOLE: ' + msg);
	};

	if (phantom.args.length < 2 \|\| phantom.args.length > 6) {
	console.log('Usage: rasterize.js URL filename WxH retina ua');
	phantom.exit();

marcelduran / app.js

Created June 26, 2014 04:14

defer.me

	require('http').createServer(function(req,res){
	console.log(req.headers['user-agent']);
	res.writeHead(200, {
	'Content-Type': 'text/css',
	//'Cache-Control': 'private, max-age=' + 60602436510,
	//'Expires': new Date(new Date().getTime()+(1000606024365*10)).toUTCString(),
	'Vary': 'Accept-Encoding'
	});
	/res.end(); return;/
	var d = new Date();

marcelduran / screenxote.js

Created June 26, 2014 04:24

Screenxote, screenshot of page regions

	var args = require('system').args,
	page = require('webpage').create();

	// valid options
	var opts = {
	'v': 'viewport',
	'a': 'area',
	's': 'selector',
	'o': 'output',
	'c': 'custom'

marcelduran / iframe.html

Created June 26, 2014 04:28

fif.io

	<!doctype html>
	<html>
	<head>
	<script>foo = 'iframe'</script>
	</head>
	<body>
	<iframe src="index.html"></iframe>
	</body>
	</html>

Marcel Duran marcelduran