cjonesy

Macbook Pro - Ubuntu Install

Requirements

2 USB drives > 2GB

Pre-Install

Create bootable USB drive

1. Grab the latest Ubuntu Desktop iso image

wvengen

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

maciejmajewski

if defined?(NewRelic)
  module NewRelic
    module Agent
      module Instrumentation
        class Grape < ::Grape::Middleware::Base
          def before
            begin
              NewRelic::Agent.set_transaction_name(transaction_name,
                                                   category: :rack)
            rescue => e

andrewgleave

/** @jsx React.DOM */

'use strict';

var React = require('react');


var AnimatableComponent = React.createClass({
    propTypes: {
        tag: React.PropTypes.component.isRequired,

sharipov-ru

config.middleware.use RoutesReloader

shedali

tell application "QuickTime Player" to activate
tell application "System Events"
	activate
	--set UI elements enabled to true
	tell process "QuickTime Player"
		click menu item "New Screen Recording" of menu "File" of menu bar 1
	end tell
end tell

tell application "QuickTime Player"

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

mmattozzi

SELECT 
  sum(heap_blks_read) as heap_read,
  sum(heap_blks_hit)  as heap_hit,
  sum(heap_blks_hit) / (sum(heap_blks_hit) + sum(heap_blks_read)) as ratio
FROM 
  pg_statio_user_tables;

somebody32

Введение

Начать стоит отсюда. Не пугайтесь то, что это книга по незнакомой OS, эти термины практически везде одинаковые и здесь они изложены в понятной для начинающих форме.

http://www.qnx.com/developers/docs/6.4.1/neutrino/getting_started/s1_procs.html

Прочесть нужно треть главы до подраздела "Starting a process", если С не пугает, читайте полностью. После прочтения вы будете понимать, что такое process, thread, mutex, priorites, semaphores, scheduler, contex-switch, kernel states.

Ruby

dannykeane

#element{
  background-image: url('/images/sprite.png');
  background-repeat: no-repeat;
  background-position: -3px 0;
}

@media print, screen,
  (-webkit-min-device-pixel-ratio: 1.25),
  (~`"-o-min-device-pixel-ratio: 1.25/1"`),
  (min--moz-device-pixel-ratio: 1.25),