title: The calling rate of GLSurfaceView.Renderer::onDrawFrame() is too low
body: <p>I just noticed the strange thing - looks like my GlSurfaceView.Renderer::onDrawFrame() gets called really rarely. At least I'd expect it to be the other way:</p>
  
  <p>Current renderer's renderMode is set to RENDER_CONTINUOUSLY (in fact, i didn't modify the default). By inserting some time measuring code I observe the following:</p>
  
  <p>GLSurfaceView.Renderer::onDrawFrame() is called 100 times in about 15 seconds.
  And these 100 frames actually take only about 0.13s to draw.</p>
  
  <p>I wonder where this slowness is coming from and where this 15s-0.13s time is being spent? I would expect the GLSurfaceView to be calling my onDrawFrame like mad, but it looks like it doesn't :)</p>
  
  <p>Am I doing something wrong, or simply I don't know something? Just beginning to learn OpenGL ES...</p>