strace -e trace=file -fp PID
(file) or strace -e trace=desc -fp PID
(file descriptors)
Common calls:
access
close
– close file handlefchmod
– change file permissionsfchown
– change file ownership
var $el = $("#very-specific-design"); | |
var elHeight = $el.outerHeight(); | |
var elWidth = $el.outerWidth(); | |
var $wrapper = $("#scaleable-wrapper"); | |
$wrapper.resizable({ | |
resize: doResize | |
}); |
var React = { | |
createElement: function (tag, attrs, children) { | |
var e = document.createElement(tag); | |
// Add attributes | |
for (var name in attrs) { | |
if (name && attrs.hasOwnProperty(name)) { | |
var v = attrs[name]; | |
if (v === true) { | |
e.setAttribute(name, name); |
/* | |
* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js | |
*/ | |
var http = require('http'), | |
fs = require('fs'), | |
util = require('util'); | |
http.createServer(function (req, res) { | |
var path = 'video.mp4'; |
// Usage | |
<Router> | |
<Provider store={store}> | |
<ListeningRouter> | |
<Main /> | |
</ListeningRouter> | |
</Provider> | |
</Router> |
<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>Object.keys vs for..in #jsbench #jsperf</title> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script> | |
<script src="./suite.js"></script> | |
</head> | |
<body> | |
<h1>Open the console to view the results</h1> |
openssl genrsa -out privkey.pem 768 | |
openssl pkcs8 -topk8 -nocrypt -in privkey.pem -out privkey2.pem |
The web is full of benchmarks showing the supernatural speed of Git even with very big repositories, but unfortunately they use the wrong variable. Size is not important, but the number of files in the repository really is!
Why is that? Well, that's because Git works in a very different way compared to Synergy. You don't have to checkout a file in order to edit it; Git will do that for you automatically. But at what price?
The price is that for every Git operation that requires to know which files changed (git status, git commmit, etc etc) an lstat() call will be executed for every single file
Wow! So how does that perform on a fairly large repository? Let's find out! For this example I will use an example project, which has 19384 files in 1326 folders.
/** | |
* User Timing polyfill (http://www.w3.org/TR/user-timing/) | |
* @author RubaXa <trash@rubaxa.org> | |
*/ | |
(function (window){ | |
var | |
startOffset = Date.now ? Date.now() : +(new Date) | |
, performance = window.performance || {} | |
, _entries = [] |