title: load all data in view did load or not?
body: <p>In one project i'm using a XML file of 1432 nodes, i've to retrieve 2 blocks of 100 nodes when user request it.</p>
  
  <p>The point is that i don't know very well permormance on iphone, which of following options should i follow:</p>
  
  <ol>
  <li>I load all data in viewDidLoad, then
  when user request it, i open a
  tableviewController passing it the
  block of data requested;</li>
  <li>Each time that user requests it, i
  scan the XML file and store only the
  block that he need.</li>
  </ol>
  
  <p>Thanks for any suggestion. 
  Jonathan.</p>