title: How to disable the Last Level Cache only of Intel Ivybridge CPU?
body: <p>I know how to disable all of the three levels of cache on Intel IvyBridge CPU. I only need to set the CD bit of CR0 register to 1 for all of CPUs. </p>
  
  <p>However, I want to disable the last level of cache (L3 cache) only on Intel IvyBridget or SandyBridge CPU and keep using the L1 and L2 on chip cache. </p>
  
  <p>The reason why I want to do this experiment is because I want to test the performance of the L3 cache and want to see the effect of not using the L3 cache.</p>
  
  <p>Could any one give me a pointer or some insight on how to achieve that? </p>