https://github.com/python/cpython/commit/a69107b33587b0fb262063971d7a0794cee613d4
commit: a69107b33587b0fb262063971d7a0794cee613d4
branch: 3.12
author: Miss Islington (bot) <31488909+miss-isling...@users.noreply.github.com>
committer: colesbury <colesb...@gmail.com>
date: 2025-03-08T18:21:46Z
summary:
[3.12] gh-130917: update timer and workload in test_signal (GH-130918) (#130968)
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.
(cherry picked from commit 78790811989ab47319e2ee725e0c435b3cdd21ab)
Co-authored-by: Diego Russo <diego.ru...@arm.com>
files:
M Lib/test/test_signal.py
diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
index a45527d7315dfc..9a01ad0dd5ce8f 100644
--- a/Lib/test/test_signal.py
+++ b/Lib/test/test_signal.py
@@ -839,11 +839,11 @@ def test_itimer_real(self):
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
@@ -860,7 +860,7 @@ def test_itimer_prof(self):
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
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