fm4dd

GCC compiler optimization for ARM-based systems

2017-03-03 fm4dd

The gcc compiler can optimize code by taking advantage of CPU specific features. Especially for ARM CPU's, this can have impact on application performance. ARM CPU's, even under the same architecture, could be implemented with different versions of floating point units (FPU). Utilizing full FPU potential improves performance of heavier operating systems such as full Linux distributions.

-mcpu, -march: Defining the CPU type and architecture

These flags can both be used to set the CPU type. Setting one or the other is sufficient.

xem

Conventions

• A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
• lengths are in any unit (ex: pixels)
• code snippets are in JavaScript

Degrees to radians

angleRad = angleDeg * Math.PI / 180;

swlaschin

Functional Track talks from NDC Oslo 2016

Wednesday 2016-06-08

• What every Node.js developer needs to know about Elixir - Bryan Hunter
• F# in the Real World - Yan Cui
• Functional Programming for Mobile Apps - Frank A. Krueger
• Phoenix a web framework for the new web - José Valim
• REPL Driven Development, Scrum, and the Wright Brothers - Jamie Dixon

soheilhy

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

okunishinishi

#Delete local tags.
git tag -l | xargs git tag -d
#Fetch remote tags.
git fetch
#Delete remote tags.
git tag -l | xargs -n 1 git push --delete origin
#Delete local tasg.
git tag -l | xargs git tag -d

kethinov

// List all files in a directory in Node.js recursively in a synchronous fashion
var walkSync = function(dir, filelist) {
  var fs = fs || require('fs'),
      files = fs.readdirSync(dir);
  filelist = filelist || [];
  files.forEach(function(file) {
    if (fs.statSync(dir + file).isDirectory()) {
      filelist = walkSync(dir + file + '/', filelist);
    }
    else {

kevinSuttle

DEPRECATED

Please see: https://github.com/kevinSuttle/html-meta-tags, thanks for the idea @dandv!

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Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags