Not sure why Rails is in the title. This is only about enabling SPDY in nginx. It would work with any application server behind it.

Yeah initially there was a paragraph on rails assets pipeline configuration. I missed it after publishing. :-(

Will add it back again.

It would have been nicer to see improvement with (i) SPDY alone and (ii) SPDY with zip compression.

Alright, we will provide more data for the two situations. I remember about 10% increment in page-load speed after zip-compression though.

I use gzip_static compression with nginx under cloudflare/spdy, and its zippy :)

Really like how cloudfare has fared with spdy. Good work!

Wondering when Heroku will support this, given that they use Nginx at the front of their stack.