| # |
| # Utility script to plot a histogram of tap latency results |
| # run in iPython pylab mode using the -i flag |
| # ipython --pylab |
| # %run -i plothist.py |
| # show() |
| |
| # Copy / paste data from walt.py output here |
| dt_down += [32.97, 21.91, 23.06, 21.72, 67.31, 22.71, 29.52, 39.83, 38.55, 24.35, 30.14, 30.52, 38.66, 21.43, 28.69, 29.57, 21.93, 22.64, 38.77] |
| dt_up += [15.86, 17.36, 15.93, 21.32, 20.16, 18.95, 14.13, 6.05, 17.58, 12.21, 13.23, 16.17, 19.14, 11.35] |
| |
| |
| dt_down = array(dt_down) |
| dt_up = array(dt_up) |
| |
| |
| # Filter out number that are definitely garbage |
| |
| dt_down = dt_down[dt_down < 150] |
| dt_up = dt_up[dt_up < 150] |
| |
| hist([dt_down, dt_up]) |
| |
| xlabel('tap latency [ms]') |
| ylabel('Count') |
| grid(True) |
| legend([ |
| 'tap down N=%d med=%0.1f' % (len(dt_down), median(dt_down)), |
| 'tap up N=%d med=%0.1f' % (len(dt_up), median(dt_up)), |
| ]) |
| title('Tap latency') |
