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gh-117657: Add TSAN suppressions for the free-threaded build (#117736)

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Additionally, reduce the iterations for a few weakref tests that would
otherwise take a prohibitively long amount of time (> 1 hour) when TSAN
is enabled and the GIL is disabled.
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mpage 2024-04-15 09:08:25 -07:00 • committed by GitHub
parent 0823f43618
commit 47832067da
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5 changed files with 69 additions and 7 deletions
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12
Lib/test/test_weakref.py
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@ -1255,6 +1255,12 @@ class MappingTestCase(TestBase):
COUNT = 10
if support.check_sanitizer(thread=True) and support.Py_GIL_DISABLED:
# Reduce iteration count to get acceptable latency
NUM_THREADED_ITERATIONS = 1000
else:
NUM_THREADED_ITERATIONS = 100000
def check_len_cycles(self, dict_type, cons):
N = 20
items = [RefCycle() for i in range(N)]
@ -1880,7 +1886,7 @@ class MappingTestCase(TestBase):
def test_threaded_weak_valued_setdefault(self):
d = weakref.WeakValueDictionary()
with collect_in_thread():
for i in range(100000):
for i in range(self.NUM_THREADED_ITERATIONS):
x = d.setdefault(10, RefCycle())
self.assertIsNot(x, None) # we never put None in there!
del x
@ -1889,7 +1895,7 @@ class MappingTestCase(TestBase):
def test_threaded_weak_valued_pop(self):
d = weakref.WeakValueDictionary()
with collect_in_thread():
for i in range(100000):
for i in range(self.NUM_THREADED_ITERATIONS):
d[10] = RefCycle()
x = d.pop(10, 10)
self.assertIsNot(x, None) # we never put None in there!
@ -1900,7 +1906,7 @@ class MappingTestCase(TestBase):
# WeakValueDictionary when collecting from another thread.
d = weakref.WeakValueDictionary()
with collect_in_thread():
for i in range(200000):
for i in range(2 * self.NUM_THREADED_ITERATIONS):
o = RefCycle()
d[10] = o
# o is still alive, so the dict can't be empty