title: Increase precision of Python's time.process_time()
body: <p>I want to increase the precision of Python's <code>process_time()</code> function.</p>
  
  <p>Running the following code, I often get <code>elapsed_time</code> equal to 0, which is not satisfactory.</p>
  
  <p>What could I do to improve precision?</p>
  
  <pre><code>t = time.process_time()
  matches = search_kmp(x, p)
  elapsed_time = time.process_time() - t
  </code></pre>
  
  <p>The purpose of the time measurements are benchmarking of algorithms.</p>