Create profile db generator for use when benchmarking a local install http://meta.discourse.org/t/benchmarking-discourse-locally/9070

config/database.yml.development-sample

@@ -39,7 +39,7 @@ production:
 
 profile:
   adapter: postgresql
-  database: discourse_development
+  database: discourse_profile
   min_messages: warning
   host: localhost
   pool: 5

script/profile_db_generator.rb

@@ -0,0 +1,73 @@
+# can be used to generate a mock db for profiling purposes
+
+require 'optparse'
+require 'gabbler'
+
+user_id = nil
+
+def sentence
+  @gabbler ||= Gabbler.new.tap do |gabbler|
+    story = File.read(File.dirname(__FILE__) + "/alice.txt")
+    gabbler.learn(story)
+  end
+
+  sentence = ""
+  until sentence.length > 800 do
+    sentence << @gabbler.sentence
+    sentence << "\n"
+  end
+  sentence
+end
+
+def create_admin(seq)
+  User.new.tap { |admin|
+    admin.email = "admin@localhost#{seq}"
+    admin.username = "admin#{seq}"
+    admin.password = "password"
+    admin.save
+    admin.grant_admin!
+    admin.change_trust_level!(:regular)
+    admin.email_tokens.update_all(confirmed: true)
+  }
+end
+
+require File.expand_path(File.dirname(__FILE__) + "/../config/environment")
+
+unless Rails.env == "profile"
+  puts "This script should only be used in the profile environment"
+  exit
+end
+
+unless User.count == 0
+  puts "Only run this script against an empty DB"
+  exit
+end
+
+puts "Creating 100 users"
+users = 100.times.map do |i|
+  putc "."
+  create_admin(i)
+end
+
+puts
+puts "Creating 10 categories"
+categories = 10.times.map do |i|
+  putc "."
+  Category.create(name: "category#{i}", text_color: "ffffff", color: "000000", user: users.first)
+end
+
+puts
+puts "Creating 100 topics"
+
+topic_ids = 100.times.map do
+  topic = PostCreator.create(users.sample, raw: sentence, title: sentence[0..50].strip, category:  categories.sample.name, skip_validations: true)
+  putc "."
+  topic.id
+end
+
+puts
+puts "creating 2000 replies"
+2000.times do
+  putc "."
+  PostCreator.create(users.sample, raw: sentence, topic_id: topic_ids.sample, skip_validations: true)
+end