From: Niraj T. <nt...@gm...> - 2006-04-18 17:02:09
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On 4/18/06, Brian Paul <bri...@tu...> wrote: > > Niraj Tolia wrote: > > On 4/18/06, *Brian Paul* <bri...@tu... > > <mailto:bri...@tu...>> wrote: > > > > Niraj Tolia wrote: > > > Hi Brian, > > > > > > We are using fairly recent Cr CVS code for QuakeViz (an > earthquake > > > modeling app from http://www.cs.cmu.edu/~quake/>. Our testing > right > > > should not be stressing a system as we rotate an small model in = a > > > 640x480 window. However, we see a very significant difference in > the > > > nubmer of frames/sec. > > > > > > Attached is a graph of a particular interactive benchmark. > > > > I don't see an attachment. > > > > > > My apologies. It seems I forgot to attach the PDF. Attached now. > > What does the vertical axis (CDF) mean? The graph is measuring the number of FPS seen for each user input that generates a screen update. For example, the act of moving your mouse to rotate an object might generate 60 frames over 3 seconds, or on average, 20 FPS. As we have a very large number of user inputs in this benchmark, we generate a CDF to figure out what fraction of events deliver 'N' frames per second. We ensure that the results are consistent across different scenarios by using a replay tool for user input. Niraj -Brian > > -- http://www.cs.cmu.edu/~ntolia |