title: What is the meaning of perf script output?
body: <p>I used the perf script command to view the result of the perf.data file, but I don't really understand what each column means. For example, if I have the following result:</p>
  
  <pre><code>perf  3198 [000] 13156.201238: bus-cycles:  ffffffff81086e90 resched_task
  
  perf  3198 [000] 13156.201267: instructions:  ffffffff811868e9 do_vfs_ioctl
  </code></pre>
  
  <p>What are the values <code>3198</code>, <code>[000]</code>, <code>13156.201238</code> referring to?</p>