Contents

require 'bundler/setup'
require 'groovy'

Groovy.open('./db/products')

class Product
  include Groovy::Model

  schema do |t|
    t.string :name
    t.integer :price
    t.boolean :published
    t.timestamps
  end

  scope :by_price, -> { puts self.inspect; sort_by(price: :asc) }
  scope :named, -> (name) { puts self.inspect; where(name: name) if name }
end

def populate
  5_000.times do |i|
    puts "Creating product #{i}" if i % 1000 == 0
    Product.create!(name: "A product with index #{i}", published: true, price: 10000 + i % 10)
  end
end

populate if Product.count == 0

# 50_000 products: 50M
# 100_000 products: 50M
# 500_000 products: 62M

module MemInfo
  KERNEL_PAGE_SIZE = `getconf PAGESIZE`.chomp.to_i rescue 4096
  STATM_PATH       = "/proc/#{Process.pid}/statm"
  STATM_FOUND      = File.exist?(STATM_PATH)
  def self.rss
    STATM_FOUND ? (File.read(STATM_PATH).split(' ')[1].to_i * KERNEL_PAGE_SIZE) / 1024 : 0
  end
end

puts MemInfo.rss
prices = Product.all.map { |x| x.price }
puts prices.inspect
puts MemInfo.rss

Version data entries

11 entries across 11 versions & 1 rubygems

Version	Path
groovy-0.7.1	example/basic.rb
groovy-0.7.0	example/basic.rb
groovy-0.6.8	example/basic.rb
groovy-0.6.7	example/basic.rb
groovy-0.6.6	example/basic.rb
groovy-0.6.4	example/basic.rb
groovy-0.6.1	example/basic.rb
groovy-0.6.0	example/basic.rb
groovy-0.5.1	example/basic.rb
groovy-0.5.0	example/basic.rb
groovy-0.4.7	example/basic.rb