I'm not sure what ActiveRecord support status is for ruby 1.9.1, so I apologize if this report is premature. By the way, I'm only using ActiveRecord here, not Rails.
I notice a 4x slow down in my program when I switch to 1.9.1. I've narrowed it down to this
# works fine class fast < ActiveRecord::Base end
# 4x slower (I need to do this in my program because I'm building table from the arbitrary csv input) slow = Class.new ActiveRecord::Base
The slow.connection.execute and a few other methods are 10x slower in ruby 1.9.1 but are fine in ruby 1.8.7. Benchmarking method call from these 2 different ways of defining a class doesn't reveal anything (speed is ,practically speaking, the same). Any body ran into this problem?
Thank you in advance.
I'm using: activerecord 2.2.2 activesuport 2.2.2 ar-extensions 0.8.0 sqlite3-ruby 1.2.4 on RedHat Linux 2.6.9
A sample code to demonstrate it is as follow:
require 'ar-extensions' require 'fastercsv'
ActiveRecord::Base.establish_connection :database => ':memory:', :adapter => 'sqlite3' ActiveRecord::Schema.define do create_table 'bubububu' do |t| t.string :user, :machine, :command t.integer :duration, :pid t.datetime :time end end
data = FasterCSV.read ARGV[0]
# This is fine in ruby 1.8.7 and 1.9.1 #class Egg < ActiveRecord::Base # set_table_name "bubububu" #end #Egg.import [:pid, :user, :time, :duration, :machine, :command], data, :validate => false
# This 'import' is fine in ruby 1.8.7 but 4x slow in 1.9.1 egg = Class.new ActiveRecord::Base do set_table_name "bubububu" end egg.import [:pid, :user, :time, :duration, :machine, :command], data, :validate => false