streaming partials

Hi everyone!
I'm looking for a railsy way to stream partial views in Rails 3.2+.
Right now streaming is supported only for yielding via provide.
But say I have 10 posts in a blog page, and each post is generated in
partial in about 300ms and I want user to start reading the first post
immediately as it's ready.

Is it possible in rails now? Is there a way to explicitly "flush" the
generated output like in php?