diff --git a/Lib/test/test_interpreters/test_stress.py b/Lib/test/test_interpreters/test_stress.py
index 56bfc1721992c8..fae2f38cb5534b 100644
--- a/Lib/test/test_interpreters/test_stress.py
+++ b/Lib/test/test_interpreters/test_stress.py
@@ -21,21 +21,29 @@ def test_create_many_sequential(self):
for _ in range(100):
interp = interpreters.create()
alive.append(interp)
+ del alive
+ support.gc_collect()
- @support.requires_resource('cpu')
- @threading_helper.requires_working_threading()
- def test_create_many_threaded(self):
+ @support.bigmemtest(size=200, memuse=32*2**20, dry_run=False)
+ def test_create_many_threaded(self, size):
alive = []
+ start = threading.Event()
def task():
+ # try to create all interpreters simultaneously
+ if not start.wait(support.SHORT_TIMEOUT):
+ raise TimeoutError
interp = interpreters.create()
alive.append(interp)
- threads = (threading.Thread(target=task) for _ in range(200))
+ threads = [threading.Thread(target=task) for _ in range(size)]
with threading_helper.start_threads(threads):
- pass
+ start.set()
+ del alive
+ support.gc_collect()
- @support.requires_resource('cpu')
@threading_helper.requires_working_threading()
- def test_many_threads_running_interp_in_other_interp(self):
+ @support.bigmemtest(size=200, memuse=34*2**20, dry_run=False)
+ def test_many_threads_running_interp_in_other_interp(self, size):
+ start = threading.Event()
interp = interpreters.create()
script = f"""if True:
@@ -47,6 +55,9 @@ def run():
interp = interpreters.create()
alreadyrunning = (f'{interpreters.InterpreterError}: '
'interpreter already running')
+ # try to run all interpreters simultaneously
+ if not start.wait(support.SHORT_TIMEOUT):
+ raise TimeoutError
success = False
while not success:
try:
@@ -58,9 +69,10 @@ def run():
else:
success = True
- threads = (threading.Thread(target=run) for _ in range(200))
+ threads = [threading.Thread(target=run) for _ in range(size)]
with threading_helper.start_threads(threads):
- pass
+ start.set()
+ support.gc_collect()
if __name__ == '__main__':
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