ss.html">Duration</a></span>
                  <span class="name ">totalSpan</span>
          
</section>
        
                <section class="desc markdown">
          <p>The timespan between build start and raster finish.</p>
<p>To achieve the lowest latency on an X fps display, this should not exceed
1000/X milliseconds.
That's about 16ms for 60fps, and 8ms for 120fps.</p>
<p>See also <a href="dart-ui/FrameTiming/buildDuration.html">buildDuration</a> and <a href="dart-ui/FrameTiming/rasterDuration.ht