1*bf47c682SAndroid Build Coastguard Worker# 2*bf47c682SAndroid Build Coastguard Worker# Utility script to plot a histogram of tap latency results 3*bf47c682SAndroid Build Coastguard Worker# run in iPython pylab mode using the -i flag 4*bf47c682SAndroid Build Coastguard Worker# ipython --pylab 5*bf47c682SAndroid Build Coastguard Worker# %run -i plothist.py 6*bf47c682SAndroid Build Coastguard Worker# show() 7*bf47c682SAndroid Build Coastguard Worker 8*bf47c682SAndroid Build Coastguard Worker# Copy / paste data from walt.py output here 9*bf47c682SAndroid Build Coastguard Workerdt_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] 10*bf47c682SAndroid Build Coastguard Workerdt_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] 11*bf47c682SAndroid Build Coastguard Worker 12*bf47c682SAndroid Build Coastguard Worker 13*bf47c682SAndroid Build Coastguard Workerdt_down = array(dt_down) 14*bf47c682SAndroid Build Coastguard Workerdt_up = array(dt_up) 15*bf47c682SAndroid Build Coastguard Worker 16*bf47c682SAndroid Build Coastguard Worker 17*bf47c682SAndroid Build Coastguard Worker# Filter out number that are definitely garbage 18*bf47c682SAndroid Build Coastguard Worker 19*bf47c682SAndroid Build Coastguard Workerdt_down = dt_down[dt_down < 150] 20*bf47c682SAndroid Build Coastguard Workerdt_up = dt_up[dt_up < 150] 21*bf47c682SAndroid Build Coastguard Worker 22*bf47c682SAndroid Build Coastguard Workerhist([dt_down, dt_up]) 23*bf47c682SAndroid Build Coastguard Worker 24*bf47c682SAndroid Build Coastguard Workerxlabel('tap latency [ms]') 25*bf47c682SAndroid Build Coastguard Workerylabel('Count') 26*bf47c682SAndroid Build Coastguard Workergrid(True) 27*bf47c682SAndroid Build Coastguard Workerlegend([ 28*bf47c682SAndroid Build Coastguard Worker 'tap down N=%d med=%0.1f' % (len(dt_down), median(dt_down)), 29*bf47c682SAndroid Build Coastguard Worker 'tap up N=%d med=%0.1f' % (len(dt_up), median(dt_up)), 30*bf47c682SAndroid Build Coastguard Worker ]) 31*bf47c682SAndroid Build Coastguard Workertitle('Tap latency')