Python tracemalloc.clear_traces() Examples

The following are 22 code examples of tracemalloc.clear_traces(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module tracemalloc , or try the search function .
Example #1
Source File: test_tracemalloc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_tracemalloc_memory(self):
        data = [allocate_bytes(123) for count in range(1000)]
        size = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size, 0)

        tracemalloc.clear_traces()
        size2 = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size2, 0)
        self.assertLessEqual(size2, size)
Example #2
Source File: test_tracemalloc.py    From android_universal with MIT License 5 votes vote down vote up 
def test_clear_traces(self):
        obj, obj_traceback = allocate_bytes(123)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertIsNotNone(traceback)

        tracemalloc.clear_traces()
        traceback2 = tracemalloc.get_object_traceback(obj)
        self.assertIsNone(traceback2)
Example #3
Source File: test_tracemalloc.py    From android_universal with MIT License 5 votes vote down vote up 
def test_get_traced_memory(self):
        # Python allocates some internals objects, so the test must tolerate
        # a small difference between the expected size and the real usage
        max_error = 2048

        # allocate one object
        obj_size = 1024 * 1024
        tracemalloc.clear_traces()
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)
        self.assertGreaterEqual(peak_size, size)

        self.assertLessEqual(size - obj_size, max_error)
        self.assertLessEqual(peak_size - size, max_error)

        # destroy the object
        obj = None
        size2, peak_size2 = tracemalloc.get_traced_memory()
        self.assertLess(size2, size)
        self.assertGreaterEqual(size - size2, obj_size - max_error)
        self.assertGreaterEqual(peak_size2, peak_size)

        # clear_traces() must reset traced memory counters
        tracemalloc.clear_traces()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))

        # allocate another object
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)

        # stop() also resets traced memory counters
        tracemalloc.stop()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
Example #4
Source File: test_tracemalloc.py    From android_universal with MIT License 5 votes vote down vote up 
def test_get_traces(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)

        traces = tracemalloc._get_traces()
        trace = self.find_trace(traces, obj_traceback)

        self.assertIsInstance(trace, tuple)
        domain, size, traceback = trace
        self.assertEqual(size, obj_size)
        self.assertEqual(traceback, obj_traceback._frames)

        tracemalloc.stop()
        self.assertEqual(tracemalloc._get_traces(), [])
Example #5
Source File: test_tracemalloc.py    From android_universal with MIT License 5 votes vote down vote up 
def test_get_object_traceback(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertEqual(traceback, obj_traceback)
Example #6
Source File: test_tracemalloc.py    From android_universal with MIT License 5 votes vote down vote up 
def test_get_tracemalloc_memory(self):
        data = [allocate_bytes(123) for count in range(1000)]
        size = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size, 0)

        tracemalloc.clear_traces()
        size2 = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size2, 0)
        self.assertLessEqual(size2, size)
Example #7
Source File: conftest.py    From aio-pika with Apache License 2.0 5 votes vote down vote up 
def memory_tracer():
    tracemalloc.start()
    tracemalloc.clear_traces()

    filters = (
        tracemalloc.Filter(True, aiormq.__file__),
        tracemalloc.Filter(True, pamqp.__file__),
        tracemalloc.Filter(True, aio_pika.__file__),
    )

    snapshot_before = tracemalloc.take_snapshot().filter_traces(filters)

    try:
        yield

        with suppress(Exception):
            gc.collect()

        snapshot_after = tracemalloc.take_snapshot().filter_traces(filters)

        top_stats = snapshot_after.compare_to(
            snapshot_before, "lineno", cumulative=True,
        )

        assert not top_stats
    finally:
        tracemalloc.stop()
Example #8
Source File: test_tracemalloc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_clear_traces(self):
        obj, obj_traceback = allocate_bytes(123)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertIsNotNone(traceback)

        tracemalloc.clear_traces()
        traceback2 = tracemalloc.get_object_traceback(obj)
        self.assertIsNone(traceback2)
Example #9
Source File: test_tracemalloc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_traced_memory(self):
        # Python allocates some internals objects, so the test must tolerate
        # a small difference between the expected size and the real usage
        max_error = 2048

        # allocate one object
        obj_size = 1024 * 1024
        tracemalloc.clear_traces()
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)
        self.assertGreaterEqual(peak_size, size)

        self.assertLessEqual(size - obj_size, max_error)
        self.assertLessEqual(peak_size - size, max_error)

        # destroy the object
        obj = None
        size2, peak_size2 = tracemalloc.get_traced_memory()
        self.assertLess(size2, size)
        self.assertGreaterEqual(size - size2, obj_size - max_error)
        self.assertGreaterEqual(peak_size2, peak_size)

        # clear_traces() must reset traced memory counters
        tracemalloc.clear_traces()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))

        # allocate another object
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)

        # stop() also resets traced memory counters
        tracemalloc.stop()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
Example #10
Source File: test_tracemalloc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_traces(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)

        traces = tracemalloc._get_traces()
        trace = self.find_trace(traces, obj_traceback)

        self.assertIsInstance(trace, tuple)
        size, traceback = trace
        self.assertEqual(size, obj_size)
        self.assertEqual(traceback, obj_traceback._frames)

        tracemalloc.stop()
        self.assertEqual(tracemalloc._get_traces(), [])
Example #11
Source File: test_tracemalloc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_object_traceback(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertEqual(traceback, obj_traceback)
Example #12
Source File: test_performance.py    From python-netflow-v9-softflowd with MIT License 5 votes vote down vote up 
def test_compare_memory(self):
        """
        Test memory usage of two collector runs with IPFIX and NetFlow v9 packets respectively.
        Then compare the two memory snapshots to make sure the libraries do not cross each other.
        TODO: more features could be tested, e.g. too big of a difference if one version is optimized better
        :return:
        """
        pkts, t1, t2 = send_recv_packets(generate_packets(NUM_PACKETS_PERFORMANCE, 10))
        self.assertEqual(len(pkts), NUM_PACKETS_PERFORMANCE)
        snapshot_ipfix = tracemalloc.take_snapshot()
        del pkts
        tracemalloc.clear_traces()

        pkts, t1, t2 = send_recv_packets(generate_packets(NUM_PACKETS_PERFORMANCE, 9))
        self.assertEqual(len(pkts), NUM_PACKETS_PERFORMANCE)
        snapshot_v9 = tracemalloc.take_snapshot()
        del pkts

        stats = snapshot_v9.compare_to(snapshot_ipfix, "lineno")
        for stat in stats:
            if stat.traceback[0].filename.endswith("netflow/ipfix.py"):
                self.assertEqual(stat.count, 0)
                self.assertEqual(stat.size, 0)

        stats = snapshot_ipfix.compare_to(snapshot_v9, "lineno")
        for stat in stats:
            if stat.traceback[0].filename.endswith("netflow/v9.py"):
                self.assertEqual(stat.count, 0)
                self.assertEqual(stat.size, 0)
Example #13
Source File: test_tracemalloc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_clear_traces(self):
        obj, obj_traceback = allocate_bytes(123)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertIsNotNone(traceback)

        tracemalloc.clear_traces()
        traceback2 = tracemalloc.get_object_traceback(obj)
        self.assertIsNone(traceback2)
Example #14
Source File: test_tracemalloc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_get_traced_memory(self):
        # Python allocates some internals objects, so the test must tolerate
        # a small difference between the expected size and the real usage
        max_error = 2048

        # allocate one object
        obj_size = 1024 * 1024
        tracemalloc.clear_traces()
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)
        self.assertGreaterEqual(peak_size, size)

        self.assertLessEqual(size - obj_size, max_error)
        self.assertLessEqual(peak_size - size, max_error)

        # destroy the object
        obj = None
        size2, peak_size2 = tracemalloc.get_traced_memory()
        self.assertLess(size2, size)
        self.assertGreaterEqual(size - size2, obj_size - max_error)
        self.assertGreaterEqual(peak_size2, peak_size)

        # clear_traces() must reset traced memory counters
        tracemalloc.clear_traces()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))

        # allocate another object
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)

        # stop() also resets traced memory counters
        tracemalloc.stop()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
Example #15
Source File: test_tracemalloc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_get_traces(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)

        traces = tracemalloc._get_traces()
        trace = self.find_trace(traces, obj_traceback)

        self.assertIsInstance(trace, tuple)
        size, traceback = trace
        self.assertEqual(size, obj_size)
        self.assertEqual(traceback, obj_traceback._frames)

        tracemalloc.stop()
        self.assertEqual(tracemalloc._get_traces(), [])
Example #16
Source File: test_tracemalloc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_get_object_traceback(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertEqual(traceback, obj_traceback)
Example #17
Source File: test_tracemalloc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_get_tracemalloc_memory(self):
        data = [allocate_bytes(123) for count in range(1000)]
        size = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size, 0)

        tracemalloc.clear_traces()
        size2 = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size2, 0)
        self.assertLessEqual(size2, size)
Example #18
Source File: test_tracemalloc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_clear_traces(self):
        obj, obj_traceback = allocate_bytes(123)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertIsNotNone(traceback)

        tracemalloc.clear_traces()
        traceback2 = tracemalloc.get_object_traceback(obj)
        self.assertIsNone(traceback2)
Example #19
Source File: test_tracemalloc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_traced_memory(self):
        # Python allocates some internals objects, so the test must tolerate
        # a small difference between the expected size and the real usage
        max_error = 2048

        # allocate one object
        obj_size = 1024 * 1024
        tracemalloc.clear_traces()
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)
        self.assertGreaterEqual(peak_size, size)

        self.assertLessEqual(size - obj_size, max_error)
        self.assertLessEqual(peak_size - size, max_error)

        # destroy the object
        obj = None
        size2, peak_size2 = tracemalloc.get_traced_memory()
        self.assertLess(size2, size)
        self.assertGreaterEqual(size - size2, obj_size - max_error)
        self.assertGreaterEqual(peak_size2, peak_size)

        # clear_traces() must reset traced memory counters
        tracemalloc.clear_traces()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))

        # allocate another object
        obj, obj_traceback = allocate_bytes(obj_size)
        size, peak_size = tracemalloc.get_traced_memory()
        self.assertGreaterEqual(size, obj_size)

        # stop() also resets traced memory counters
        tracemalloc.stop()
        self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
Example #20
Source File: test_tracemalloc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_traces(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)

        traces = tracemalloc._get_traces()
        trace = self.find_trace(traces, obj_traceback)

        self.assertIsInstance(trace, tuple)
        size, traceback = trace
        self.assertEqual(size, obj_size)
        self.assertEqual(traceback, obj_traceback._frames)

        tracemalloc.stop()
        self.assertEqual(tracemalloc._get_traces(), [])
Example #21
Source File: test_tracemalloc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_object_traceback(self):
        tracemalloc.clear_traces()
        obj_size = 12345
        obj, obj_traceback = allocate_bytes(obj_size)
        traceback = tracemalloc.get_object_traceback(obj)
        self.assertEqual(traceback, obj_traceback)
Example #22
Source File: test_tracemalloc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_get_tracemalloc_memory(self):
        data = [allocate_bytes(123) for count in range(1000)]
        size = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size, 0)

        tracemalloc.clear_traces()
        size2 = tracemalloc.get_tracemalloc_memory()
        self.assertGreaterEqual(size2, 0)
        self.assertLessEqual(size2, size)