In my application, a lot of time is spent on /inbox.
I'm running rails multithreaded (config.threadsafe) and verified this
is working OK.
However, it seems that requests to the same url, will block.
Simple test app:
./script/generate controller slowdown action1 action2
and turn on config.threadsafe in config/environments/production.rb
now run server in production mode
You'll see that if you start the requests roughly at the same time,
the first action1 and action2 will complete at the same time.
The second action1 comes 15sec behind.
Passing non-used params (localhost:3000/slowdown/action1?blah=3) will
trick the app to
handle the request in parallel. Also, aliasing localhost does the
So it looks as if rails/rack does some locking per url.
I couldn't find anything though.
Is anyone aware of this behavior? What is the cause?