2010/6/10 Bruno Guimarães Sousa <[email protected]> > I forgot about rails plugins (for example attachment_fu or > calendar_helper), but what I really meant was rubygems used by Olio: rcov, > will_paginate, image_science and RubyInline. > > In short, Olio, maybe, is thread-safe or not, and there's a need for more > tests in order to prove it right? Maybe plugins/gems developers would be the > right folks to answer if each one is thread-safe or not. And then we could > conclude how would Olio would work. What do you think?
I don't really agree, these are not parts of Olio, they are part of what Olio is designed to test. Olio Rails does use image_science but you can easily plugin in rmagick or mini-magick. You can use Thin or Mongrel or Passenger for the app server component, etc. You seem to be working on the principle that Olio is more than what it is, which is an application and Faban driver that can be used to test under extreme load, deployment configurations which include Ruby runtimes and gems as well as operating systems and hardware. rcov and will_paginate are probably exceptions to this, although Olio does not force you to use specific versions of these gems. There are limitations, Rails changes from version to version and so we do have to say that we only 'support' specific versions of Rails. Personally my aim would be for Olio Rails to run on just about anything that you throw at it and this extends to the plugins that it's bundled with. Amanda > > regards, > -- > Bruno Guimarães Sousa > www.ifba.edu.br > PONTONET - DGTI - IFBA > Ciência da Computação UFBA > Registered Linux user #465914 > > > On Wed, Jun 9, 2010 at 11:59 AM, Amanda Waite <[email protected] > > wrote: > >> >> >> 2010/6/9 Bruno Guimarães Sousa <[email protected]> >> >> Hi, >>> Rails application cores are thread safe since 2.2 version( >>> http://guides.rubyonrails.org/2_2_release_notes.html#thread-safety). So >>> I suppose Olio's core is thread safe. >>> >> >> That's an interesting question and one that I can only offer empirical >> evidence on. We've run Olio Rails with most of the available runtime >> infrastructures from WEBrick to Passenger with both green threaded and >> native threaded Ruby 1.8 implementations and we've not encountered any >> issues. On some of our rigs we've run Olio on JRuby on systems with large >> numbers of hardware theads. >> >> >> Are Olio's gems able to work with threadsin order to achieve full thread >>> support? >>> >> >> It's impossible to say for sure, they are off the shelf plugins (you do >> mean the plugins right?) but that doesn't necessarily mean that the >> versions used in Olio have been tested for thread safety. Again empirical >> evidence is all I can offer. >> >> It's something that we can address properly when we add support for Ruby >> 1.9. >> >> If you meant infrastructure gems such as thin, rack and the MySQL gem then >> they would be considered parts of the System Under Test and if there are any >> concurrency/thread-safety issues with these then Olio is the very tool that >> you need to identify them. >> >> Amanda >> >> >> >>> >>> regards, >>> -- >>> Bruno Guimarães Sousa >>> www.ifba.edu.br >>> PONTONET - DGTI - IFBA >>> Ciência da Computação UFBA >>> Registered Linux user #465914 >>> >> >> >
