title: Convert GetTickCount() vxWorks to Linux
body: <p>I am porting some vxWorks code to Linux.</p>
  
  <p>I looked at this <a href="https://stackoverflow.com/questions/2958291/equivalent-to-gettickcount-on-linux/2958359#2958359">answer</a> and it recommends <a href="http://www.opengroup.org/onlinepubs/000095399/functions/clock_getres.html" rel="nofollow noreferrer">CLOCK_MONOTONIC</a>. Is that a suitable replacement for the following define:</p>
  
  <pre><code>#define GetTickCount()    ((1000.0 * (double)tickGet())/((double)sysClkRateGet())))
  </code></pre>
  
  <p>?</p>