title: Has anyone tried using the UV_THREADPOOL_SIZE environment variable?
body: <p>One of the changes made by Ben Noordhius in Node v0.10.0 was to "honor UV_THREADPOOL_SIZE environment variable" in Unix. The "threadpool.c" source file seems to do just that. </p>
  
  <p>If I don't set this env variable, I can verify that I am limited to a threadpool of 4 threads, which is the default size of the threadpool.</p>
  
  <p>But I set this environment variable on my Linux server to 64 and then restart Node, but I still seem to be limited, seemingly to a threadpool of size of 5?!</p>
  
  <p>Does this make any sense to anyone? Thanks!</p>