leandronsp

DROP INDEX IF EXISTS transfers_in, transfers_out;
CREATE INDEX transfers_in ON transfers (target_account_id);
CREATE INDEX transfers_out ON transfers (source_account_id);

leandronsp

class Dog
  def name
    # retorna variável de instância
    @name
  end
end

doguinho = Dog.new

# Chamando método de instância

leandronsp

require 'socket'
require 'cgi'

PORT = 3000
socket = TCPServer.new('0.0.0.0', PORT)

puts "Listening to the port #{PORT}..."

loop do
  # Wait for a new TCP connection..."

leandronsp

class Cractor
  def initialize(*args, &block)
    @inbox  = Queue.new
    @outbox = Queue.new

    Thread.new do
      result = yield(self, *args)

      self.yield(result)
    end

leandronsp

/* 
  Reverse a word 
 */
const reverse = (word) => {
  const letters = word.split('')
  const lastIdx = letters.length - 1

  return letters
    .map((letter, idx) => { return letters[lastIdx - idx] })
    .join('')

leandronsp

ab -n 20 -c 5

                          Req per seconds   Time per req (ms)
Threads – IO              232               21
Fibers – IO               450               11
Threads – External Req	  1.85              2703
Fibers – External Req     7.97              627

leandronsp

require 'faker'
require 'benchmark'

def generate_groups
  (1..1_000).map do |id|
    { id: id, name: Faker::Educator.primary_school }
  end
end

def generate_users(groups_ids)

leandronsp

require 'benchmark'

def sum_range_using_for_loop(min, max)
  range = (min..max)
  sum   = 0

  for n in range
    sum = sum + n
  end

leandronsp

Create the pod on the cluster

kubectl apply -f nginx-pod.yaml

leandronsp

config:
  gcp:project: "my-project-created-on-gcp"