Stefan Krah <stefan-use...@bytereef.org> added the comment:
test_itimer_virtual assumes that a process must get 0.3s of virtual
time within 5s of real time. This is not true:
I can easily make the test fail even on a fast machine by doing
as root (do it n times for n cores):
nice -n -19 sh -c 'echo "1234^123456789" | bc'
======================================================================
FAIL: test_itimer_prof (__main__.ItimerTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "Lib/test/test_signal.py", line 401, in test_itimer_prof
self.fail('timeout waiting for sig_prof signal')
AssertionError: timeout waiting for sig_prof signal
======================================================================
FAIL: test_itimer_virtual (__main__.ItimerTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "Lib/test/test_signal.py", line 379, in test_itimer_virtual
(signal.getitimer(self.itimer),))
AssertionError: timeout waiting for sig_vtalrm signal;
signal.getitimer(self.itimer) gives: (0.200012, 0.200012)
----------
nosy: +skrah
title: buildbots: test_itimer_virtual failures -> Test assumptions for
test_itimer_virtual and test_itimer_prof
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue8424>
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