How slow is Hobo?

Hobo in development mode is much slower than vanilla Rails, however in production mode the speed should be comparable.

Optimizing a Hobo application is very similar to optimizing a Rails application, so many of the techniques and online resources which apply to Rails apps may help for Hobo apps too.

There are some things you can turn on that can significantly speed up your Hobo application:

There are two major steps to optimizing a Rails application:

  • optimizing database access
  • caching

Optimizing database access is slightly more difficult in Hobo than in Rails because database access in Hobo is usually implicit. To optimize, we add an initial efficient explicit access. For example:

def show
  self.this = Foo.find(params[:id]).includes(:bar, :bat)
  hobo_show
end

Make sure that your relationships have the :inverse_of option set on both ends or this technique will make things worse rather than better.

Also ensure that every column that you are sorting or searching on is indexed in your database.

Caching a Hobo application is much easier than caching a Rails application. Rails caching is described in the Caching with Rails Guide. Page caching and action caching are identical in both Hobo & vanilla Rails, but Hobo adds several tags to make fragment caching much easier.

There’s a tutorial describing the Hobo caching tags


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