gistfile1.py

import numpy
from matplotlib import pyplot

with open('1sub-noepoll-notmpfs.log', 'r') as f:
    noepoll_notmpfs = numpy.array([float(x) for x in f.readlines()])

with open('1sub-epoll-notmpfs.log', 'r') as f:
    epoll_notmpfs = numpy.array([float(x) for x in f.readlines()])

with open('1sub-epoll-tmpfs.log', 'r') as f:
    epoll_tmpfs = numpy.array([float(x) for x in f.readlines()])

fig, (ax0, ax1, ax2) = pyplot.subplots(nrows=3, sharex="all")

num_bins = 100
pyplot.figure(1)
pyplot.subplot(3,1,1)
n, bins, patches = pyplot.hist(noepoll_notmpfs, num_bins, range=(0, 0.2))
pyplot.subplot(3,1,2)
n, bins, patches = pyplot.hist(epoll_notmpfs, num_bins, range=(0, 0.2))
pyplot.subplot(3,1,3)
n, bins, patches = pyplot.hist(epoll_tmpfs, num_bins, range=(0, 0.2))

pyplot.show()