title: Determine instruction set of my processor under Linux
body: <p>I would like to know how to know which instruction set my processor using; I am running Linux.</p>
  
  <p>I would also like to understand how a processor can handle many instruction sets.</p>
  
  <p>When I type <code>cat /proc/cpuinfo</code>, I get : </p>
  
  <pre><code>model name : AMD FX(tm)-6350 Six Core Processor
  </code></pre>
  
  <p>I also see numerous flags: <code>fpu</code>, <code>vme</code>, <code>mmxext</code>, ...</p>