É um histograma de dados gráficos
I aligned the histogram right beside the graph so both make use of the same y-axis and the data explains itself (hopefully). I'm not sure if I treat the numbers the best way, I just put the measured fps values into buckets, so far.
daqui
https://groups.google.com/a/chromium.org/d/msg/chromium-dev/_GOLojYXc3s/vwlkjCsnILAJ