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gh-130917: update timer and workload in test_signal (#130918)

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The workload to advance the virtual timeout is too lightweight for some
platforms. As result the test goes in timeout as it never reaches the
end of the timer. By having a heavier workload, the virtual timer
advances rapidly and the SIGVTALRM is sent before the timeout.
This commit is contained in:
Diego Russo 2025-03-07 21:10:02 +00:00 committed by GitHub
parent b1b4f9625c
commit 7879081198
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1 changed files with 3 additions and 3 deletions
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6
Lib/test/test_signal.py
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@ -838,11 +838,11 @@ class ItimerTest(unittest.TestCase):
def test_itimer_virtual(self):
self.itimer = signal.ITIMER_VIRTUAL
signal.signal(signal.SIGVTALRM, self.sig_vtalrm)
signal.setitimer(self.itimer, 0.3, 0.2)
signal.setitimer(self.itimer, 0.001, 0.001)
for _ in support.busy_retry(support.LONG_TIMEOUT):
# use up some virtual time by doing real work
_ = pow(12345, 67890, 10000019)
_ = sum(i * i for i in range(10**5))
if signal.getitimer(self.itimer) == (0.0, 0.0):
# sig_vtalrm handler stopped this itimer
break
@ -859,7 +859,7 @@ class ItimerTest(unittest.TestCase):
for _ in support.busy_retry(support.LONG_TIMEOUT):
# do some work
_ = pow(12345, 67890, 10000019)
_ = sum(i * i for i in range(10**5))
if signal.getitimer(self.itimer) == (0.0, 0.0):
# sig_prof handler stopped this itimer
break