Delayed::Jobs as well as Sidkiq are a great way to increase the scalability of any web app. The difference to the options described in my article are that this options are working with additional processes, so it was outside of the discussion for this article.

But still for (nearly) any relevant real word application a worker process is a huge win and should be used for all long running tasks where the user doesn’t need immediate feedback when it is finished or the task is precalculating something.