The issue was fixed some time ago in Rubyripper. Further details can be found in the the bugreport at https://code.google.com/p/rubyripper/issues/detail?id=348
** Bug watch added: code.google.com/p/rubyripper/issues #348 http://code.google.com/p/rubyripper/issues/detail?id=348 ** Changed in: ruby-gnome2 (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are subscribed to Ubuntu. https://bugs.launchpad.net/bugs/670743 Title: poor i/o performance in thread parallel to Gtk.main (time overhead can be as bad as 2500%) Status in “ruby-gnome2” package in Ubuntu: Fix Released Bug description: Binary package hint: ruby-gnome2 rubyripper [1] is performing poorly in maverik x86-64 (up-to-date). They have an open issue for this [2]. Apparently there is nothing wrong with rubyripper. So I managed to reduce it to a small test case. It is based in the very first ruby- gnome2 example I could find. The test function reads 3 MB from /dev/zero. This function is called from a new thread. This is done 3 times. Before the call to Gtk.main, during it (from a button callback signal) and after it. These are the times for each one (in seconds). 0.004285 9.689063 0.021076 Something is wrong. Test code follows. [1] http://code.google.com/p/rubyripper [2] http://code.google.com/p/rubyripper/issues/detail?id=348 -- #!/usr/bin/env ruby require 'gtk2' def simpleRead puts "simpleRead begin\n" index = 0 file = File.open("/dev/zero", 'r') while (index < 3 * 1024 * 1024) file.read(16 * 1024) index += 16 * 1024 end file.close() puts "simpleRead end\n" end def newThreadSimpleRead Thread.new do require "benchmark" puts Benchmark.measure { simpleRead } #simpleRead end end button = Gtk::Button.new("Hello World") button.signal_connect("clicked") { newThreadSimpleRead } window = Gtk::Window.new window.signal_connect("delete_event") { puts "delete event occurred" #true false } window.signal_connect("destroy") { puts "destroy event occurred" Gtk.main_quit } window.border_width = 10 window.add(button) window.show_all newThreadSimpleRead STDIN.readchar Gtk.main newThreadSimpleRead STDIN.readchar To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ruby-gnome2/+bug/670743/+subscriptions _______________________________________________ Pkg-ruby-extras-maintainers mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-ruby-extras-maintainers
