/usr/share/pyshared/mvpa/tests/runner.py is in python-mvpa 0.4.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# vi: set ft=python sts=4 ts=4 sw=4 et:
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#
# See COPYING file distributed along with the PyMVPA package for the
# copyright and license terms.
#
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"""Helper module to enable profiling of the testcase
If environment variable PROFILELEVEL is set it uses hotshot profiler
for unittest.main() call. Value of PROFILELEVEL defines number of top
busy functions to report.
Environment variable PROFILELINES=1 makes hotshot store information
per each line, so it could be easily inspected later on.
Output:
Profiler stores its Stats into a file named after original script
(sys.argv[0]) with suffix".prof" appended
Usage:
Replace unittest.main() with import runner
Visualization:
kcachegrind provides nice interactive GUI to inspect profiler
results. If PROFILELINES was set to 1, it provides information per
each line.
To convert .prof file into a file suitable for kcachegrind, use
utility hotshot2calltree which comes in package
kcachegrind-converters.
Example:
# profile and output 3 most expensive function calls
PROFILELEVEL=3 PROFILELINES=1 PYTHONPATH=../ python test_searchlight.py
# convert to kcachegrind format
hotshot2calltree -o test_searchlight.py.kcache test_searchlight.py.prof
# inspect
kcachegrind test_searchlight.py.kcache
"""
import unittest
import sys
from os import environ
from mvpa import _random_seed
profilelevel = None
if environ.has_key('PROFILELEVEL'):
profilelevel = int(environ['PROFILELEVEL'])
# Extend TestProgram to print out the seed which was used
class TestProgramPyMVPA(unittest.TestProgram):
def runTests(self):
if self.verbosity:
print "MVPA_SEED=%s:" % _random_seed,
sys.stdout.flush()
super(TestProgramPyMVPA, self).runTests()
if profilelevel is None:
TestProgramPyMVPA()
else:
profilelines = environ.has_key('PROFILELINES')
import hotshot, hotshot.stats
pname = "%s.prof" % sys.argv[0]
prof = hotshot.Profile(pname, lineevents=profilelines)
try:
# actually return values are never setup
# since unittest.main sys.exit's
benchtime, stones = prof.runcall( unittest.main )
except SystemExit:
pass
print "Saving profile data into %s" % pname
prof.close()
if profilelevel > 0:
# we wanted to see the summary right here
# instead of just storing it into a file
print "Loading profile data from %s" % pname
stats = hotshot.stats.load(pname)
stats.strip_dirs()
stats.sort_stats('time', 'calls')
stats.print_stats(profilelevel)
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