from __future__ import print_function

import resource
from BTrees.IOBTree import IOBTree

quasi_index = IOBTree()

print(resource.getrusage(resource.RUSAGE_SELF).ru_maxrss)

for i in xrange(10000000):
    quasi_index[i] = False

print(resource.getrusage(resource.RUSAGE_SELF).ru_maxrss)