jeffrafter

Note these instructions are all based on the mightyOhm articles. This is a little bit different because I wanted to get alsa sound working (instead of dsp) so that I could overlay effects
and background sound simultaneously.

What to do
==========
install mightyohm trx by blind flashing
setup network and wireless and dhcp
setup the banner for fun

Blind flashing

nragaz

CURRENT_RUBY  = 'ree-1.8.7-2010.02'
RUBY_PATH     = "/home/rails/.rvm/rubies/#{CURRENT_RUBY}"
GEM_HOME      = "/home/rails/.rvm/gems/#{CURRENT_RUBY}"

ssh_options[:paranoid]      = false
ssh_options[:forward_agent] = true
default_run_options[:pty]   = true


set :stages,        %w(staging production)

mikeymckay

#!/usr/bin/env ruby

require 'rubygems'
require 'sinatra'
require 'friendly'

Friendly.configure({
  :adapter => "sqlite",
  :database => "database.sqlite3"
})

demonbane

#!/bin/sh

echo "What should the Application be called (no spaces allowed e.g. GCal)?"
read inputline
name="$inputline"

echo "What is the url (e.g. https://www.google.com/calendar/render)?"
read inputline
url="$inputline"

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

joshuaswilcox

if application "Spotify" is running and application "iTunes" is not running then
  tell application "Spotify"
    if player state is stopped then
      set display to "No Track Playing"
    else
      set track_artist to artist of current track
      set track_name to name of current track
      set track_duration to duration of current track
      set seconds_played to player position
			set state to ""

jeffrafter

def fetch_contents(queue = "default", max = 100000)
  Sidekiq.redis do |r|
    r.lrange("queue:#{queue}", 0, max)
  end;
end

def sidekiq_job_breakdown(queue = "default", contents = nil)
  re = /\"class":"([0-9A-Za-z_::]+)"/

  contents ||= fetch_contents(queue)

rbishop

Generate a new Elixir project using mix and add cowboy and plug as dependencies in mix.exs:

  defp deps do
    [
      {:cowboy, "~> 1.0.0"},
      {:plug, "~> 0.8.1"}
    ]
  end

surma

Minimal example making webpack and wasm/Emscripten work together.

Build instructions:

• Clone this gist
• npm install
• npm start
• Open http://localhost:8080
• Look at console

nadavrot

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of