Development performance

[chriseppstein]

The runtime performance of hmp is killing me in development mode. How can we make this better? Code generation maybe? I'm willing to help build it.

[ghost]

What part of it is slow?

[chriseppstein]

I have this declaration:

acts_as_double_polymorphic_join(
  :parents => [:pages],
  :children => [:pages] + Item.type_names(:primary => true),
  :children_order => "parent_children.position ASC"
)

And every request does this:

** has_many_polymorphs: associating Page.parents
** has_many_polymorphs: associating Article.parents
** has_many_polymorphs: associating BlogPost.parents
** has_many_polymorphs: associating BuyingGuide.parents
** has_many_polymorphs: associating Calculator.parents
** has_many_polymorphs: associating Checklist.parents
** has_many_polymorphs: associating CommunityPost.parents
** has_many_polymorphs: associating CommunityDiscussion.parents
** has_many_polymorphs: associating Quiz.parents
** has_many_polymorphs: associating MedicareInformation.parents
** has_many_polymorphs: associating News.parents
** has_many_polymorphs: associating Poll.parents
** has_many_polymorphs: associating Question.parents
** has_many_polymorphs: associating Task.parents
** has_many_polymorphs: associating Tip.parents
** has_many_polymorphs: associating ToDoList.parents
** has_many_polymorphs: associating Interview.parents
** has_many_polymorphs: associating Reflection.parents
** has_many_polymorphs: preloading parent model Tag
** has_many_polymorphs: associating Tag.taggables

[ghost]

There is some env flag that causes it to generate code, which you could paste in...otherwise...cache_classes = true?

[chriseppstein]

I tried caching classes. it's not a better solution. The acts_as_double_polymorphic_join declaration rarely changes... it seems silly to do a bunch of work with every request instead of when the declaration changes.

I saw the code generation stuff. I was wondering if we could productize that with some rake tasks, etc.

[ghost]

That seems like it would work...optional way to cache the declarations only, basically.

[chriseppstein]

are the "declarations" the hard work that hmp performs?

[ghost]

yeah...setting up all the association declarations for you.