ekinertac

server{
    listen 80;
    server_name example.com;

    access_log /home/path_to_site/access.log;
    error_log /home/path_to_site/error.log;

    location / {
        proxy_pass http://0.0.0.0:8002;
        proxy_set_header Host $host;

audreyt

From SocialCalc to EtherCalc

Previously, in The Architecture of Open Source Applications, I described SocialCalc, an in-browser spreadsheet system that replaced the server-centric WikiCalc architecture. SocialCalc performs all of its computations in the browser; it uses the server only for loading and saving spreadsheets.

For the Socialtext team, performance was the primary goal behind SocialCalc's design in 2006. The key observation was this: Client-side computation in JavaScript, while an order of magnitude slower than server-side computation in Perl, was still much faster than the network latency incurred during AJAX roundtrips:

---

******

justinko

def find_in_batches(model)
  current_batch, count = 0, model.count

  while count > 0 do
    model.all.skip(current_batch * 1000).limit(1000).each do |doc|
      yield doc  
    end
    count -= 1000
    current_batch += 1
  end