Author: Armin Rigo <[email protected]>
Branch: gc-del-limit-growth
Changeset: r91992:f9500da6edd2
Date: 2017-07-30 16:33 +0200
http://bitbucket.org/pypy/pypy/changeset/f9500da6edd2/
Log: Add failing test
diff --git a/rpython/memory/test/gc_test_base.py
b/rpython/memory/test/gc_test_base.py
--- a/rpython/memory/test/gc_test_base.py
+++ b/rpython/memory/test/gc_test_base.py
@@ -1099,6 +1099,42 @@
self.interpret(fn, [])
+ def test_bounded_memory_when_allocating_with_finalizers(self):
+ # Issue #2590: when allocating a lot of objects with a finalizer
+ # and little else, the bounds in the (inc)minimark GC are not
+ # set up reasonably and the total memory usage grows without
+ # limit.
+ class B(object):
+ pass
+ b = B()
+ b.num_deleted = 0
+ class A(object):
+ def __init__(self):
+ fq.register_finalizer(self)
+ class FQ(rgc.FinalizerQueue):
+ Class = A
+ def finalizer_trigger(self):
+ while True:
+ a = self.next_dead()
+ if a is None:
+ break
+ b.num_deleted += 1
+ fq = FQ()
+ def f(x, y):
+ i = 0
+ alive_max = 0
+ while i < x:
+ i += 1
+ a = A()
+ a.x = a.y = a.z = i
+ #print i - b.num_deleted, b.num_deleted
+ alive = i - b.num_deleted
+ assert alive >= 0
+ alive_max = max(alive_max, alive)
+ return alive_max
+ res = self.interpret(f, [1000, 0])
+ assert res < 50
+
from rpython.rlib.objectmodel import UnboxedValue
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