title: definition of linux perf cache-misses event?
body: <p>I am trying to use linux perf to profile cache performance. </p>
  
  <p>perf list shows there is a cache-misses event.  However, what's the definition of this "cache-misses" event? </p>
  
  <p>Is it one of L1D/L1i cache, L2 cache or L3 cache? </p>
  
  <p>Thanks!</p>