title: CPU raises with attributesOfItemAtPath:error:
body: <p>I am using <code>[NSFileManager attributesOfItemAtPath:error:]</code> function for fetching attributes of file.
  But sometimes my application cpu is going upto 100%. I am using this function for 100k(approx.) files.<br>
  Sample of my application:  </p>
  
  <pre><code>                                2128 -[NSFileManager attributesOfItemAtPath:error:]
                                    2128 +[NSFileAttributes _attributesAtPath:partialReturn:filterResourceFork:error:]
                                      2123 _attributesAtPath
                                        2072 listxattr
                                        29 realloc
                                          18 realloc
                                          11 szone_size
                                        22 _attributesAtPath
                                      5 _sysenter_trap  
  </code></pre>
  
  <p>Can anyone please help me out?</p>