Adding ruby script.

scripts/ruby/kostya_large.rb

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+require 'json'
+
+x = []
+
+524288.times do
+  h = {
+    'x' => rand,
+    'y' => rand,
+    'z' => rand,
+    'name' => ('a'..'z').to_a.shuffle[0..5].join + ' ' + rand(10000).to_s,
+    'opts' => {'1' => [1, true]},
+  }
+  x << h
+end
+
+File.open("1.json", 'w') { |f| f.write JSON.pretty_generate('coordinates' => x, 'info' => "some info") }