title: Default buffer size for a file on Linux
body: <p>The <a href="http://docs.python.org/2/library/functions.html#open">documentation</a> states that the default value for buffering is:  <code>If omitted, the system default is used</code>. I am currently on Red Hat Linux 6, but I am not able to figure out the default buffering that is set for the system. </p>
  
  <p>Can anyone please guide me as to how determine the buffering for a system?</p>