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320 lines
12 KiB
Python
320 lines
12 KiB
Python
# Copyright (C) 2024–present Loren Eteval & contributors <loren.eteval@proton.me>
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#
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# This file is part of Furious.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""Measure lifetime and memory trends across hundreds of Qt UI cycles."""
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from __future__ import annotations
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from Furious.Frozenlib import Mixins
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from Furious.Qt import AppQAction, AppQMenu, AppQTransientDialog
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from Furious.Backends.Hysteria2.Editor import Hysteria2Editor
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from Furious.Backends.Xray.RoutingWindow import RoutingPreviewDialog
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from Furious.Backends.Xray.VlessEditor import VlessEditor
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from PySide6 import QtCore, QtGui
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from tests.support import (
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application,
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collectAtBoundary,
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currentRSS,
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currentNativeHandleCount,
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isolatedSettings,
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qObjectCount,
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)
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import unittest
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import weakref
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import tracemalloc
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class StressDialog(AppQTransientDialog):
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"""Own representative actions, a menu, a timer, and signal callbacks."""
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def __init__(self):
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"""Create one inexpensive but ownership-rich transient dialog."""
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super().__init__()
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self.timer = QtCore.QTimer(self)
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self.timer.timeout.connect(self.update)
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self.timer.start(1000)
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self.actionsForTest = tuple(
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AppQAction(f'Action {index}', callback=self.update) for index in range(3)
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)
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self.menuForTest = AppQMenu(*self.actionsForTest, parent=self)
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class QtMemoryStressTest(unittest.TestCase):
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"""Reject linear live-object retention while tolerating allocator caching."""
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WarmupIterations = 40
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BatchIterations = 100
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BatchCount = 3
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@classmethod
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def setUpClass(cls):
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"""Create the process-wide headless QApplication."""
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application()
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@staticmethod
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def _runBatch(iterations):
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"""Create and close a batch without forcing collection per cycle."""
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references, destroyed = [], []
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for _index in range(iterations):
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dialog = StressDialog()
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dialog.destroyed.connect(lambda *_args: destroyed.append(True))
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references.append(weakref.ref(dialog))
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dialog.show()
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dialog.close()
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del dialog
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collectAtBoundary()
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return references, len(destroyed)
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def testThreeHundredCyclesPlateauAfterWarmup(self):
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"""Combine direct destruction, pool counts, Python memory, and RSS trend."""
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collectAtBoundary()
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baseline = {
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'dialog': qObjectCount(StressDialog),
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'timer': qObjectCount(QtCore.QTimer),
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'menu': qObjectCount(AppQMenu),
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'action': qObjectCount(AppQAction),
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'translationPool': len(Mixins.QTranslatable.ObjectsPool),
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'themePool': len(Mixins.ThemeAware.ObjectsPool),
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'connectionPool': len(Mixins.ConnectionAware.ObjectsPool),
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}
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tracemalloc.start()
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try:
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warmupReferences, warmupDestroyed = self._runBatch(self.WarmupIterations)
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warmupPython = tracemalloc.get_traced_memory()[0]
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rssSamples = [currentRSS()]
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pythonSamples = [warmupPython]
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liveSamples = [qObjectCount(StressDialog)]
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resourceSamples = [
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{
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'timer': qObjectCount(QtCore.QTimer),
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'menu': qObjectCount(AppQMenu),
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'action': qObjectCount(AppQAction),
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}
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]
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references = list(warmupReferences)
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destroyed = warmupDestroyed
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for _batch in range(self.BatchCount):
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batchReferences, batchDestroyed = self._runBatch(self.BatchIterations)
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references.extend(batchReferences)
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destroyed += batchDestroyed
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rssSamples.append(currentRSS())
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pythonSamples.append(tracemalloc.get_traced_memory()[0])
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liveSamples.append(qObjectCount(StressDialog))
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resourceSamples.append(
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{
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'timer': qObjectCount(QtCore.QTimer),
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'menu': qObjectCount(AppQMenu),
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'action': qObjectCount(AppQAction),
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}
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)
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totalIterations = (
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self.WarmupIterations + self.BatchIterations * self.BatchCount
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)
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self.assertEqual(destroyed, totalIterations)
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self.assertTrue(all(reference() is None for reference in references))
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self.assertEqual(liveSamples, [baseline['dialog']] * 4)
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for resourceSample in resourceSamples:
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self.assertEqual(resourceSample['timer'], baseline['timer'])
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self.assertEqual(resourceSample['menu'], baseline['menu'])
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self.assertEqual(resourceSample['action'], baseline['action'])
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self.assertEqual(
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len(Mixins.QTranslatable.ObjectsPool),
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baseline['translationPool'],
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)
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self.assertEqual(
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len(Mixins.ThemeAware.ObjectsPool),
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baseline['themePool'],
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)
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self.assertEqual(
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len(Mixins.ConnectionAware.ObjectsPool),
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baseline['connectionPool'],
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)
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pythonGrowth = tuple(
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later - earlier
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for earlier, later in zip(pythonSamples, pythonSamples[1:])
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)
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# A persistent leak produces similar positive growth in every
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# post-warm-up batch. Permit normal tracing/allocator noise, but
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# fail a sustained multi-megabyte trend correlated with no cache
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# stabilization.
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suspiciousPythonGrowth = (
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all(growth > 512 * 1024 for growth in pythonGrowth)
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and sum(pythonGrowth) > 3 * 1024 * 1024
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)
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self.assertFalse(
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suspiciousPythonGrowth,
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f'continued Python retention after warm-up: {pythonSamples}',
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)
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presentRSS = tuple(value for value in rssSamples if value is not None)
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if len(presentRSS) == len(rssSamples):
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rssGrowth = tuple(
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later - earlier
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for earlier, later in zip(presentRSS, presentRSS[1:])
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)
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suspiciousRSSGrowth = (
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all(growth > 4 * 1024 * 1024 for growth in rssGrowth)
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and sum(rssGrowth) > 16 * 1024 * 1024
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)
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self.assertFalse(
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suspiciousRSSGrowth,
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f'continued resident-memory growth after warm-up: {presentRSS}',
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)
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print(
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'Qt lifetime stress:',
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{
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'widget': StressDialog.__name__,
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'iterations': totalIterations,
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'destroyed': destroyed,
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'liveSamples': liveSamples,
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'resourceSamples': resourceSamples,
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'pythonBytes': pythonSamples,
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'rssBytes': rssSamples,
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},
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)
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finally:
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tracemalloc.stop()
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def testRealDialogFamiliesPlateauAcrossBatches(self):
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"""Measure representative production editors instead of only a probe."""
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factories = (
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('routing-preview', lambda: RoutingPreviewDialog({'rules': []})),
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('vless-editor', VlessEditor),
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('hysteria2-editor', Hysteria2Editor),
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)
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warmupIterations, batchIterations, batchCount = 3, 8, 3
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with isolatedSettings():
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for family, factory in factories:
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with self.subTest(family=family):
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collectAtBoundary()
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baseline = {
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'timer': qObjectCount(QtCore.QTimer),
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'action': qObjectCount(QtGui.QAction),
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'menu': qObjectCount(AppQMenu),
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'translationPool': len(Mixins.QTranslatable.ObjectsPool),
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'themePool': len(Mixins.ThemeAware.ObjectsPool),
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'connectionPool': len(Mixins.ConnectionAware.ObjectsPool),
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}
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references, destroyed, samples = [], [], []
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for batch, iterations in enumerate(
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(warmupIterations,) + (batchIterations,) * batchCount
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):
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for _index in range(iterations):
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dialog = factory()
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dialog.destroyed.connect(
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lambda *_args, _destroyed=destroyed: _destroyed.append(
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True
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)
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)
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references.append(weakref.ref(dialog))
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dialog.show()
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dialog.close()
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del dialog
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collectAtBoundary()
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samples.append(
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{
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'batch': batch,
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'timer': qObjectCount(QtCore.QTimer),
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'action': qObjectCount(QtGui.QAction),
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'menu': qObjectCount(AppQMenu),
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'handles': currentNativeHandleCount(),
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'rss': currentRSS(),
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}
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)
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total = warmupIterations + batchIterations * batchCount
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self.assertEqual(len(destroyed), total)
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self.assertTrue(
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all(reference() is None for reference in references)
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)
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for sample in samples:
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self.assertEqual(sample['timer'], baseline['timer'])
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self.assertEqual(sample['action'], baseline['action'])
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self.assertEqual(sample['menu'], baseline['menu'])
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self.assertEqual(
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len(Mixins.QTranslatable.ObjectsPool),
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baseline['translationPool'],
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)
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self.assertEqual(
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len(Mixins.ThemeAware.ObjectsPool),
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baseline['themePool'],
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)
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self.assertEqual(
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len(Mixins.ConnectionAware.ObjectsPool),
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baseline['connectionPool'],
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)
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handles = tuple(
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sample['handles']
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for sample in samples
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if sample['handles'] is not None
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)
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if len(handles) == len(samples):
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self.assertLessEqual(max(handles) - min(handles), 4)
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print(
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'Qt real-dialog stress:',
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{
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'family': family,
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'iterations': total,
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'destroyed': len(destroyed),
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'samples': samples,
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},
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)
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if __name__ == '__main__':
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unittest.main()
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